Generated by All in One SEO v4.9.7.2, this is an llms.txt file, used by LLMs to index the site. # MBS Classes Your Pathway to Academic Excellence ## Sitemaps - [XML Sitemap](https://mbsclasses.com/sitemap.xml): Contains all public & indexable URLs for this website. ## Posts - [Blog](https://mbsclasses.com/blog/) - [पढ़ाई में टॉपर कैसे बनें? एक कहानी जो आपकी सोच बदल देगी!](https://mbsclasses.com/पढ़ाई-में-टॉपर-कैसे-बनें-ए/) - क्या आप भी घंटों किताबें लेकर बैठते हैं? क्या बहुत पढ़ाई करने के बाद भी एग्जाम में अच्छे मार्क्स नहीं आते? अक्सर स्टूडेंट्स को लगता है कि टॉपर बनना एक गॉड-गिफ्टेड चीज़ है या फिर टॉपर दिन-रात सिर्फ पढ़ते रहते हैं। लेकिन सच यह नहीं है। सही तरीके से पढ़ाई करना एक कला है। आज - [अंतिम सत्य: केवल शिक्षक के प्रयास से नहीं, विद्यार्थी के कड़े परिश्रम से बदलेंगे परिणाम](https://mbsclasses.com/अंतिम-सत्य-केवल-शिक्षक-के/) - शिक्षण केवल एक पेशा नहीं, बल्कि एक साधना है। हर विद्यालय या ट्यूशन क्लास में एक ऐसा शिक्षक ज़रूर होता है, जो 'ना के बराबर' छुट्टियां लेता है। उनकी निष्ठा ऐसी होती है कि खराब मौसम हो या हल्की बीमारी, वे रोज़ मुस्कुराते हुए विद्यार्थियों के सामने खड़े मिलते हैं। लेकिन इस कहानी का दूसरा - [एक शिक्षक को अपने छात्र से क्या चाहिए? (सफलता का त्रिकोण: शिक्षक, छात्र और अभिभावक)](https://mbsclasses.com/एक-शिक्षक-को-अपने-छात्र-से/) - एक शिक्षक के जीवन का सबसे बड़ा सपना क्या होता है? सिर्फ सिलेबस पूरा करना? बिल्कुल नहीं। एक सच्चा शिक्षक हमेशा चाहता है कि उसका हर छात्र विषय को गहराई से समझे, जीवन में सही ज्ञान प्राप्त करे और परीक्षा में बेहतरीन अंक लाए। इस सपने को पूरा करने के लिए शिक्षक दिन-रात मेहनत करता - [क्लास में 100% ध्यान कैसे लगाएं? (स्टूडेंट्स के लिए सीक्रेट गाइड)](https://mbsclasses.com/क्लास-में-100-ध्यान-कैसे-लगाए/) - स्कूल या कॉलेज में क्लास अटेंड करना सिर्फ बेंच पर बैठने का नाम नहीं है। अक्सर स्टूडेंट्स क्लास में शारीरिक रूप से तो मौजूद रहते हैं (Physically Present), लेकिन दिमाग से कहीं दूर खेल के मैदान में या दोस्तों के साथ घूम रहे होते हैं (Mentally Absent)। अगर आप भी इस समस्या से परेशान हैं - [पढ़ाई के साथ खेल भी है जरूरी: जानिए कैसे बनाएं सही संतुलन (Balance)](https://mbsclasses.com/पढ़ाई-के-साथ-खेल-भी-है-जरूर/) - आज के इस डिजिटल और कॉम्पिटिटिव दौर में हर माता-पिता और छात्र का पूरा ध्यान सिर्फ अच्छे मार्क्स लाने पर होता है। सुबह स्कूल, दोपहर में कोचिंग और रात को घर पर होमवर्क—छात्रों की दिनचर्या बस किताबों के इर्द-गिर्द सिमट कर रह गई है। लेकिन क्या सिर्फ दिन-रात पढ़ना ही सफलता की गारंटी है? बिल्कुल - [Topper Formula: Students Exams Me Ache Marks Kaise Laye?](https://mbsclasses.com/topper-formula-students-exams-me-ache-marks-kaise-laye/) - Har student ka sapna hota hai ki wo exams me top kare. Lekin toppers din-raat ratta nahi lagte, wo smart study aur ek behtareen daily routine follow karte hain. Agar aap bhi apne grades ko upgrade karna chahte hain, toh ye short guide aapke liye hi hai. 1. Exam Me Sahi Marks Lane Ke Top - [What is the colour of ferric oxide?](https://mbsclasses.com/what-is-the-colour-of-ferric-oxide/) - A) BlackB) WhiteC) Reddish brownD) Blue Answer: C) Reddish brown - [BITS Pilani Hyderabad Researchers Develop Advanced Graphene Electrode for Better Supercapacitors](https://mbsclasses.com/bits-pilani-hyderabad-researchers-develop-advanced-graphene-electrode-for-better-supercapacitors/) - Researchers from BITS Pilani Hyderabad Campus have developed a new graphene-based electrode that may improve the performance of next-generation supercapacitors. Their research focuses on making energy storage devices faster, more efficient, and more durable. The project was carried out at the MMNE (MEMS, Microfluidics and Nanoelectronics) Laboratory. According to reports, the findings were recently published ## Pages - [Home](https://mbsclasses.com/) - Learn Maths with Concept Clarity ​ Class 8 • 9 • 10Online Classes Start Learning WhatsApp Support Blogs Explore a treasure trove of educational insights, tips, and resources in our blog. From innovative teaching strategies to subject-specific guidance, empower your learning journey here! EduInsights Discover insightful articles, innovative teaching strategies, and practical learning resources on - [Student Essentials](https://mbsclasses.com/student-essentials/) - [Dictionary](https://mbsclasses.com/dictionary/) - [Fun Zone](https://mbsclasses.com/fun-zone/) - [Assignment-21052026](https://mbsclasses.com/assignment-21052026/) - Question 1If a pair of linear equations is inconsistent, then the lines representing them graphically will be:(A) Intersecting(B) Always coincident(C) Parallel(D) Intersecting or coincident Question 2For what value of k do the equations 3x – y + 8 = 0 and 6x – ky = -16 represent coincident lines?(A) 1/2(B) -1/2(C) 2(D) -2 Question 3Find - [Latest Blogs](https://mbsclasses.com/latest-blogs/) - Latest Educational Blogs पढ़ाई में टॉपर कैसे बनें? एक कहानी जो आपकी सोच बदल देगी! क्या आप भी घंटों किताबें लेकर बैठते हैं? क्या बहुत पढ़ाई करने के बाद भी एग्जाम में अच्छे... Read More अंतिम सत्य: केवल शिक्षक के प्रयास से नहीं, विद्यार्थी के कड़े परिश्रम से बदलेंगे परिणाम शिक्षण केवल एक पेशा नहीं, - [Adw-hw](https://mbsclasses.com/adw-hw/) - Home Work Do Complete Mathematics Chapter 3 and 4 Physics - Electricity Maths Chapter 5 (Whatever we discussed till today) - [Class 10 Live](https://mbsclasses.com/class-10-live/) - [Privacy Policy](https://mbsclasses.com/privacy-policy-2/) - Privacy Policy MBS Classes is committed to protecting the privacy and security of your personal information. This Privacy Policy outlines how we collect, use, disclose, and safeguard your information when you visit our website. Please read this policy carefully. 1. Information We Collect 1.1 Personal Information: We may collect personal details such as your name, - [Terms and Conditions](https://mbsclasses.com/terms-and-conditions/) - Welcome to MBS Classes. By accessing or using our website, you agree to comply with the following terms and conditions. Please read them carefully. 1. General 1.1 MBS Classes is an online educational platform designed to provide high-quality educational resources and services. 1.2 By using this website, you accept these terms and conditions in full. - [About](https://mbsclasses.com/about/) - [Contact](https://mbsclasses.com/contact/) - [Shop](https://mbsclasses.com/shop/) - [Dashboard](https://mbsclasses.com/dashboard/) - [Student Registration](https://mbsclasses.com/student-registration/) - [Instructor Registration](https://mbsclasses.com/instructor-registration/) - [Cart](https://mbsclasses.com/cart/) - [Checkout](https://mbsclasses.com/checkout/) - [Page](https://mbsclasses.com/page/) - [LearnPress Add-On](https://mbsclasses.com/learnpress-add-on/) - [The Worlds Best Online Education Institute](https://mbsclasses.com/the-worlds-best-online-education-institute/) - It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. - [The Worlds Best Online Education Institute](https://mbsclasses.com/the-worlds-best-online-education-institute-2/) - It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. - [The Worlds Best Online Education Institute](https://mbsclasses.com/the-worlds-best-online-education-institute-3/) - It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. - [Register](https://mbsclasses.com/register/) - [Login](https://mbsclasses.com/login/) - [Blogs](https://mbsclasses.com/blogs/) - [Courses](https://mbsclasses.com/courses/) ## My Templates - [Default Kit](https://mbsclasses.com/?elementor_library=default-kit) ## Products - [Class 10 Previous Year Question Explanation in Detail](https://mbsclasses.com/product/class-10-previous-year-question-explanation/) - Detailed step-by-step explanations of Class 10 previous years' board exam questions to enhance understanding and boost exam confidence. - [Class 8 - Maths - CBSE - New Syllabus 2026-27](https://mbsclasses.com/product/class-8-maths-cbse-new-syllabus-2026-27/) - Class 8 Maths – New Syllabus Problem Practice Book Boost your Maths preparation with carefully selected chapter-wise problems based on the latest syllabus. This course/book is specially designed for Class 8 students who want to improve concepts, problem-solving speed, and exam confidence. What You Will Get ✅ New Syllabus Based Questions✅ Chapter-wise Practice Problems✅ Important ## Courses - [Free Class 8 Maths Videos - Learn and Master Concepts Easily!](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/) - Discover the best free video lessons designed to make Class 8 Math's simple and enjoyable! These videos cover all the essential concepts, explained step-by-step to help you understand and master each topic with ease. Whether you're preparing for exams or strengthening your basics, these engaging lessons are perfect for boosting your confidence and achieving success - [Best Free Videos - Class 10 Maths (Maths Mastery in the Final Hour: Boards 2025)](https://mbsclasses.com/courses/new-course-2/) - Here, you’ll find high-quality, free video tutorials that cover the entire Class 10 Mathematics syllabus. Each topic is explained with:Clear concepts: Step-by-step solutions to help you grasp even the trickiest problems.Real-life examples: Relatable examples to make learning engaging and practical.Board exam tips: Strategies to solve problems efficiently and score maximum marks.Whether it’s quadratic equations, coordinate - [Best Free Videos for Class 9 Maths - Master Concepts with Ease!](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/) - Explore the ultimate collection of free video lessons for Class 9 Maths, carefully designed to make learning easy and enjoyable. Each video is packed with clear explanations, step-by-step solutions, and real-life examples to help you understand and excel in your exams.Whether you're revising for exams or want to strengthen your fundamentals, these free videos are - [Vedic Mathematics Course: Simplify Math Like Never Before](https://mbsclasses.com/courses/vedic-mathematics-course-simplify-math-like-never-before/) - We are excited to launch our Vedic Mathematics Course designed especially for students! This course will revolutionize the way you approach calculations, making them faster, easier, and more efficient.By the end of the course, you’ll master powerful techniques to solve complex problems with ease, boost your confidence in math, and save valuable time during exams. ## Lessons - [🔴 LIVE CLASS — Class 10](https://mbsclasses.com/courses/new-course-2/lessons/🔴-live-class-class-10/) - 🔴 LIVE NOW — Class 10 Maths - [🔴 LIVE CLASS — Class 9](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/🔴-live-class-class-9/) - 🔴 LIVE NOW — Class 9 Maths - [Important Questions - Statistics - If the median of the following frequency distribution is 32.5, find the missing frequencies.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-statistics-if-the-median-of-the-following-frequency-distribution-is-32-5-find-the-missing-frequencies/) - Important Questions - Statistics - If the median of the following frequency distribution is 32.5, find the missing frequencies. - [Important Questions - Statistics - The mean of the following frequency table is 57.6. But the frequencies f1 and f2 are missing. Find the value of missing frequencies f1 and f2.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-statistics-the-mean-of-the-following-frequency-table-is-57-6-but-the-frequencies-f1-and-f2-are-missing-find-the-value-of-missing-frequencies-f1-and-f2/) - Important Questions - Statistics - The mean of the following frequency table is 57.6. But the frequencies f1 and f2 are missing. Find the value of missing frequencies f1 and f2. - [Important Questions - Some Applications of Trigonometry - If the angle of elevation of a cloud from point h meters above a lake is alpha and the angle of depression of its reflection in the lake is beta prove that height of the cloud is h](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-some-applications-of-trigonometry-if-the-angle-of-elevation-of-a-cloud-from-point-h-meters-above-a-lake-is-alpha-and-the-angle-of-depression-of-its-reflection-in-the-lake-is-be/) - Important Questions - Some Applications of Trigonometry - If the angle of elevation of a cloud from point h meters above a lake is alpha and the angle of depression of its reflection in the lake is beta prove that height of the cloud is h(tan beta + tan alpha) /tan beta - tan alpha - [Important Questions - Some Applications of Trigonometry - The angle of elevation of a cloud from a point 60 metres above a lake is 30o and the angle of depression of the reflection of the cloud in the lake is 60 o. Find the height of the cloud.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-some-applications-of-trigonometry-the-angle-of-elevation-of-a-cloud-from-a-point-60-metres-above-a-lake-is-30o-and-the-angle-of-depression-of-the-reflection-of-the-cloud-in-the/) - Important Questions - Some Applications of Trigonometry - The angle of elevation of a cloud from a point 60 metres above a lake is 30o and the angle of depression of the reflection of the cloud in the lake is 60 o. Find the height of the cloud. - [Important Questions - Some Applications of Trigonometry - Amit standing on a horizontal plane. Find a bird flying at a distance of 200 M from him at an elevation of 30. Deepak standing on the roof of a 50 M high building](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-some-applications-of-trigonometry-amit-standing-on-a-horizontal-plane-find-a-bird-flying-at-a-distance-of-200-m-from-him-at-an-elevation-of-30-deepak-standing-on-the-roof-of/) - Important Questions - Some Applications of Trigonometry - Amit standing on a horizontal plane. Find a bird flying at a distance of 200 M from him at an elevation of 30. Deepak standing on the roof of a 50 M high building finds the angle of elevation of the same bird to be 45. Amit - [Important Questions - Some Applications of Trigonometry - A fire in a building B is reported on telephone to two fire stations P and Q,20km apart from each other on a straight road. P observes that the fire is at an angle of60∘to the road](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-some-applications-of-trigonometry-a-fire-in-a-building-b-is-reported-on-telephone-to-two-fire-stations-p-and-q20km-apart-from-each-other-on-a-straight-road-p-observes-that-th/) - Important Questions - Some Applications of Trigonometry - A fire in a building B is reported on telephone to two fire stations P and Q,20km apart from each other on a straight road. P observes that the fire is at an angle of60∘to the road and Q observes that it is at an angle of45∘to - [Important Question - Related to Upstream & Downstream - A motor boat whose speed is 15 km/hr in still water goes 30 km downstream and comes back in 4 hour 30 minutes. Determine the speed of the stream](https://mbsclasses.com/courses/new-course-2/lessons/important-question-related-to-upstream-downstream-a-motor-boat-whose-speed-is-15-km-hr-in-still-water-goes-30-km-downstream-and-comes-back-in-4-hour-30-minutes-determine-the-speed-of-the-stream/) - A motor boat whose speed is 15 km/hr in still water goes 30 km downstream and comes back in 4 hour 30 minutes. Determine the speed of the stream - [Important Questions - Surface Area and Volume - An ice–cream cone full of ice-cream having radius 5 cm and height 10 cm, as shown in figure. Calculate the volume of ice-cream, provided that its 1/6 part is left unfilled with ice–cream.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-surface-area-and-volume-an-ice-cream-cone-full-of-ice-cream-having-radius-5-cm-and-height-10-cm-as-shown-in-figure-calculate-the-volume-of-ice-cream-provided-that-it/) - Important Questions - Surface Area and Volume - An ice–cream cone full of ice-cream having radius 5 cm and height 10 cm, as shown in figure. Calculate the volume of ice-cream, provided that its 1/6 part is left unfilled with ice–cream. - [Important Questions - Surface Area and Volume - Water is flowing at the rate of 15 km per hour through a pipe of diameter 14 cm into a cuboidal pond which is 50 m long and 44 m wide Find the time in which the level of water in the tank will rise by 21 cm](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-surface-area-and-volume-water-is-flowing-at-the-rate-of-15-km-per-hour-through-a-pipe-of-diameter-14-cm-into-a-cuboidal-pond-which-is-50-m-long-and-44-m-wide-find-the-time-in-w/) - Important Questions - Surface Area and Volume - Water is flowing at the rate of 15 km per hour through a pipe of diameter 14 cm into a cuboidal pond which is 50 m long and 44 m wide Find the time in which the level of water in the tank will rise by 21 - [Important Questions - Surface Area and Volume - Water in a canal, 6 m wide and 1.5 m deep, is flowing with a speed of 10 km/hr. How much area will it irrigate in 30 minutes, if 8 cm of standing water is needed?](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-surface-area-and-volume-water-in-a-canal-6-m-wide-and-1-5-m-deep-is-flowing-with-a-speed-of-10-km-hr-how-much-area-will-it-irrigate-in-30-minutes-if-8-cm-of-standing-water/) - Important Questions - Surface Area and Volume - Water in a canal, 6 m wide and 1.5 m deep, is flowing with a speed of 10 km/hr. How much area will it irrigate in 30 minutes, if 8 cm of standing water is needed? - [Important Questions - Surface Area and Volume - Water is flowing at the rate of 2.52kmhr through a cylindrical pipe into a cylindrical tank, the radius of whose base is 40 cm. If the increase in the level of water in the tank, in half an hour](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-surface-area-and-volume-water-is-flowing-at-the-rate-of-2-52kmhr-through-a-cylindrical-pipe-into-a-cylindrical-tank-the-radius-of-whose-base-is-40-cm-if-the-increase-in-the-l/) - Important Questions - Surface Area and Volume - Water is flowing at the rate of 2.52kmhr through a cylindrical pipe into a cylindrical tank, the radius of whose base is 40 cm. If the increase in the level of water in the tank, in half an hour is 3.15 m, find the internal diameter of - [Important Questions - Trigonometry - In a Triangle PQR, N is a point on PR, such that QN is perpendicular PR If PN x NR = QN^2 prove that angle PQR=90](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-trigonometry-in-a-triangle-pqr-n-is-a-point-on-pr-such-that-qn-is-perpendicular-pr-if-pn-x-nr-qn2-prove-that-angle-pqr90/) - Important Questions - Trigonometry - In a Triangle PQR, N is a point on PR, such that QN is perpendicular PR If PN x NR = QN^2 prove that angle PQR=90 - [Important Questions - Trigonometry - A spherical balloon of radius r subtends an angle θ at the eye of an observer. If the angle of elevation of its centre is φ, find the height of the centre of the balloon.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-trigonometry-a-spherical-balloon-of-radius-r-subtends-an-angle-θ-at-the-eye-of-an-observer-if-the-angle-of-elevation-of-its-centre-is-φ-find-the-height-of-the-centr/) - Important Questions - Trigonometry - A spherical balloon of radius r subtends an angle θ at the eye of an observer. If the angle of elevation of its centre is φ, find the height of the centre of the balloon. - [Important Questions - Trigonometry - If sin theta + cos theta = root 2 then tan theta + cot theta =](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-trigonometry-if-sin-theta-cos-theta-root-2-then-tan-theta-cot-theta/) - Important Questions - Trigonometry - If sin theta + cos theta = root 2 then tan theta + cot theta = - [Important Questions - Trigonometry - If sin theta - cos theta = 0 then value of sin^4 theta + cos^4 theta is](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-trigonometry-if-sin-theta-cos-theta-0-then-value-of-sin4-theta-cos4-theta-is/) - Important Questions - Trigonometry - If sin theta - cos theta = 0 then value of sin^4 theta + cos^4 theta is - [Important Questions - Quadratic Equations - The roots of the equation (b-c)x^2 + (c-a)x + (a-b) = 0 are equal then ........](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-quadratic-equations-the-roots-of-the-equation-b-cx2-c-ax-a-b-0-are-equal-then/) - The roots of the equation (b-c)x^2 + (c-a)x + (a-b) = 0 are equal then ........ - [Important Questions - Coordinate Geometry - Rajiv decided to put a frame on a scenery which is quadrilateral in shape. He placed this scenery on coordinate axes such that one vertex coincides with origin O and one arm OA coincides with x axis](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-coordinate-geometry-rajiv-decided-to-put-a-frame-on-a-scenery-which-is-quadrilateral-in-shape-he-placed-this-scenery-on-coordinate-axes-such-that-one-vertex-coincides-with-ori/) - Important Questions - Coordinate Geometry - Rajiv decided to put a frame on a scenery which is quadrilateral in shape. He placed this scenery on coordinate axes such that one vertex coincides with origin O and one arm OA coincides with x axis and another arm OC coincides with y axis. Here OA = 5 - [Important Questions - Coordinate Geometry - The distance of the point P (2,3) from the x axis is](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-coordinate-geometry-the-distance-of-the-point-p-23-from-the-x-axis-is/) - Important Questions - Coordinate Geometry - The distance of the point P (2,3) from the x axis is - [Important Questions - Coordinate Geometry - The line segment joining points (-3 , -4) and (1 , -2) is divided by y axis in the ratio ...........](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-coordinate-geometry-the-line-segment-joining-points-3-4-and-1-2-is-divided-by-y-axis-in-the-ratio/) - Important Questions - Coordinate Geometry - The line segment joining points (-3 , -4) and (1 , -2) is divided by y axis in the ratio ........... - [Important Questions - Coordinate Geometry - If x is a positive integer such that the distance between points P (x , 2) and Q (3 , -6) is 10 units the value of x is ..........](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-coordinate-geometry-if-x-is-a-positive-integer-such-that-the-distance-between-points-p-x-2-and-q-3-6-is-10-units-the-value-of-x-is/) - Important Questions - Coordinate Geometry - If x is a positive integer such that the distance between points P (x , 2) and Q (3 , -6) is 10 units the value of x is .......... - [Important Questions - Triangles - In the given figure ∠1=∠2 and ΔNSQ≅ΔMTR, then prove that ΔPTS∼ΔPRQ](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-triangles-in-the-given-figure-∠1∠2-and-δnsq≅δmtr-then-prove-that-δpts∼δprq/) - Important Questions - Triangles - In the given figure ∠1=∠2 and ΔNSQ≅ΔMTR, then prove that ΔPTS∼ΔPRQ - [Important Questions - Triangles - Through the mid-point M of the side CD of a parallelogram ABCD, the line BM is drawn intersecting AC in L and AD (produced) in E. Prove that EL = 2BL](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-triangles-through-the-mid-point-m-of-the-side-cd-of-a-parallelogram-abcd-the-line-bm-is-drawn-intersecting-ac-in-l-and-ad-produced-in-e-prove-that-el-2bl/) - Important Questions - Triangles - Through the mid-point M of the side CD of a parallelogram ABCD, the line BM is drawn intersecting AC in L and AD (produced) in E. Prove that EL = 2BL - [Important Questions - Triangles - Let ABC be a triangle and D and E be two points on side AB such that AD=BE. If DP||BC and EQ||AC, then prove that PQ||AB.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-triangles-let-abc-be-a-triangle-and-d-and-e-be-two-points-on-side-ab-such-that-adbe-if-dpbc-and-eqac-then-prove-that-pqab/) - Important Questions - Triangles - Let ABC be a triangle and D and E be two points on side AB such that AD=BE. If DP||BC and EQ||AC, then prove that PQ||AB. - [Important Questions - Triangles - In a Triangle PQR, N is a point on PR, such that QN is perpendicular PR If PN x NR = QN^2 prove that angle PQR=90](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-triangles-in-a-triangle-pqr-n-is-a-point-on-pr-such-that-qn-is-perpendicular-pr-if-pn-x-nr-qn2-prove-that-angle-pqr90/) - Important Questions - Triangles - In a Triangle PQR, N is a point on PR, such that QN is perpendicular PR If PN x NR = QN^2 prove that angle PQR=90 - [Important Questions - Triangles - In the given figure, PA, QB and RC are each perpendicular to AC. Prove that 1/x + 1/z =1/y](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-triangles-in-the-given-figure-pa-qb-and-rc-are-each-perpendicular-to-ac-prove-that-1-x-1-z-1-y/) - Important Questions - Triangles - In the given figure, PA, QB and RC are each perpendicular to AC. Prove that 1/x + 1/z =1/y - [Important Questions - Triangles - In the given figure, the value of x in cm is](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-triangles-in-the-given-figure-the-value-of-x-in-cm-is/) - Important Questions - Triangles - In the given figure, the value of x in cm is - [Important Questions - Triangles - In the figure ∠BED = ∠BDE and E divides BC in the ratio 2:1 then prove that AF × BE = 2 AD × CF](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-triangles-in-the-figure-∠bed-∠bde-and-e-divides-bc-in-the-ratio-21-then-prove-that-af-x-be-2-ad-x-cf/) - Important Questions - Triangles - In the figure ∠BED = ∠BDE and E divides BC in the ratio 2:1 then prove that AF × BE = 2 AD × CF - [Important Questions - Triangles - In the given figure, DE BC, AE a units, EC b units, DE x units and BC y units Which of the following is true](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-triangles-in-the-given-figure-de-bc-ae-a-units-ec-b-units-de-x-units-and-bc-y-units-which-of-the-following-is-true/) - Important Questions - Triangles - In the given figure, DE BC, AE a units, EC b units, DE x units and BC y units Which of the following is true - [Important Questions - Arithmetic Progression - If the mth term of an AP is 1/n and nth term is 1/m ,then prove that the sum of mn terms is (mn+1)/2](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-arithmetic-progression-if-the-mth-term-of-an-ap-is-1-n-and-nth-term-is-1-m-then-prove-that-the-sum-of-mn-terms-is-mn1-2/) - Important Questions - Arithmetic Progression - If the mth term of an AP is 1/n and nth term is 1/m ,then prove that the sum of mn terms is (mn+1)/2 - [Important Questions - Arithmetic Progression - Rohan repays his total loan of ₹ 1,18,000 by paying every month starting with the first instalment of ₹ 1,000. If he increases the instalment by ₹ 100 every month, what amount will be paid by him in](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-arithmetic-progression-rohan-repays-his-total-loan-of-₹-118000-by-paying-every-month-starting-with-the-first-instalment-of-₹-1000-if-he-increases-the-instal/) - Important Questions - Arithmetic Progression - Rohan repays his total loan of ₹ 1,18,000 by paying every month starting with the first instalment of ₹ 1,000. If he increases the instalment by ₹ 100 every month, what amount will be paid by him in the 30th instalment What amount of loan has he paid after - [Important Questions - Arithmetic Progression - Find how many integers between 200 and 500 are divisible by 8.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-arithmetic-progression-find-how-many-integers-between-200-and-500-are-divisible-by-8/) - Important Questions - Arithmetic Progression - Find how many integers between 200 and 500 are divisible by 8. - [Important Questions - Arithmetic Progression - Rajiv gets pocket money from his father every day. out of pocket money, he saves Rs 2.75 on 1st day and on each succeeding day he increases his saving by 25 paise.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-arithmetic-progression-rajiv-gets-pocket-money-from-his-father-every-day-out-of-pocket-money-he-saves-rs-2-75-on-1st-day-and-on-each-succeeding-day-he-increases-his-saving-by/) - Important Questions - Arithmetic Progression - Rajiv gets pocket money from his father every day. out of pocket money, he saves Rs 2.75 on 1st day and on each succeeding day he increases his saving by 25 paise. (i) On which day he saves Rs. 7.75 ? (ii) Find the difference between the amount saved - [Important Questions - Arithmetic Progression - A three digit number is given such that the sum of its digits is 9 and the digits are in A.P. The number formed by reversing the digits is 198 greater than the original number. Find the original number.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-arithmetic-progression-a-three-digit-number-is-given-such-that-the-sum-of-its-digits-is-9-and-the-digits-are-in-a-p-the-number-formed-by-reversing-the-digits-is-198-greater-th/) - Important Questions - Arithmetic Progression - A three digit number is given such that the sum of its digits is 9 and the digits are in A.P. The number formed by reversing the digits is 198 greater than the original number. Find the original number. - [Important Questions - Arithmetic Progression - In an A.P., if a=3.5, d=0, n=101, then a(n) will be](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-arithmetic-progression-in-an-a-p-if-a3-5-d0-n101-then-an-will-be/) - Important Questions - Arithmetic Progression - In an A.P., if a=3.5, d=0, n=101, then a(n) will be - [Important Questions - Arithmetic Progression - If the ratio of the 18th term to 11th term of an AP is 32 then the ratio of the 21st term to 5th term is](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-arithmetic-progression-if-the-ratio-of-the-18th-term-to-11th-term-of-an-ap-is-32-then-the-ratio-of-the-21st-term-to-5th-term-is/) - Important Questions - Arithmetic Progression - If the ratio of the 18th term to 11th term of an AP is 32 then the ratio of the 21st term to 5th term is - [Important Questions - Arithmetic Progression - If the ratio of the sum of the first n terms of two AP's is (7n+1) : (4n+27) then find the ratio of their 9th term](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-arithmetic-progression-if-the-ratio-of-the-sum-of-the-first-n-terms-of-two-aps-is-7n1-4n27-then-find-the-ratio-of-their-9th-term/) - Important Questions - Arithmetic Progression - If the ratio of the sum of the first n terms of two AP's is (7n+1) : (4n+27) then find the ratio of their 9th term - [Important Questions - Probability - Most Important Probability Questions for 2025 Board Exams](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-probability-most-important-probability-questions-for-2025-board-exams/) - Important Questions - Probability - Most Important Probability Questions for 2025 Board Exams - [Important Questions - Probability - A coin is tossed 3 times List the possible outcomes, find the probability of getting (i) All heads (ii) At least two heads](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-probability-a-coin-is-tossed-3-times-list-the-possible-outcomes-find-the-probability-of-getting-i-all-heads-ii-at-least-two-heads/) - Important Questions - Probability - A coin is tossed 3 times List the possible outcomes, find the probability of getting (i) All heads (ii) At least two heads - [Important Questions - Probability - Apoorv throws two dice once and computes the product of the numbers appearing on the dice. Peehu throws one die and squares the number that appears on it. Who has the better chance of getting the number 36? Why ?](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-probability-apoorv-throws-two-dice-once-and-computes-the-product-of-the-numbers-appearing-on-the-dice-peehu-throws-one-die-and-squares-the-number-that-appears-on-it-who-has-t/) - Important Questions - Probability - Apoorv throws two dice once and computes the product of the numbers appearing on the dice. Peehu throws one die and squares the number that appears on it. Who has the better chance of getting the number 36? Why ? - [Important Questions - Probability - A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears (i) a two digit number (ii) a perfect square number (iii) a number divisible by 5.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-probability-a-box-contains-90-discs-which-are-numbered-from-1-to-90-if-one-disc-is-drawn-at-random-from-the-box-find-the-probability-that-it-bears-i-a-two-digit-number-ii/) - Important Questions - Probability - A box contains 90 discs which are numbered from 1 to 90. If one disc is drawn at random from the box, find the probability that it bears (i) a two digit number (ii) a perfect square number (iii) a number divisible by 5. - [Important Questions - Probability - A box contains cards numbered 3,5,7,9,........,35,37. A card is drawn at random from the box. Find the probability that the number on the card is a prime number.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-probability-a-box-contains-cards-numbered-3579-3537-a-card-is-drawn-at-random-from-the-box-find-the-probability-that-the-number-on-the-card-is-a-prime-number/) - Important Questions - Probability - A box contains cards numbered 3,5,7,9,........,35,37. A card is drawn at random from the box. Find the probability that the number on the card is a prime number. - [Important Questions - Probability - Akshat appears for a multiple choice questions test with four choices one of which is right. He either guesses or copies or knows the answer to a question. Total number of questions in the test is 50. He know](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-probability-akshat-appears-for-a-multiple-choice-questions-test-with-four-choices-one-of-which-is-right-he-either-guesses-or-copies-or-knows-the-answer-to-a-question-total-nu/) - Important Questions - Probability - Akshat appears for a multiple choice questions test with four choices one of which is right. He either guesses or copies or knows the answer to a question. Total number of questions in the test is 50. He knows the answer to 50% of the questions, he guesses the answer - [Important Questions - Probability - Two coins are tossed simultaneously. Find probability of getting At least one head At most one head.](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-probability-two-coins-are-tossed-simultaneously-find-probability-of-getting-at-least-one-head-at-most-one-head/) - Important Questions - Probability - Two coins are tossed simultaneously. Find probability of getting At least one head At most one head. - [Quadratic Equations Important Questions - Quadratic Equations Important Questions (C)](https://mbsclasses.com/courses/new-course-2/lessons/quadratic-equations-important-questions-quadratic-equations-important-questions-c/) - Quadratic Equations Important Questions - Quadratic Equations Important Questions (C) - [Quadratic Equations Important Questions - Quadratic Equations Important Questions (B)](https://mbsclasses.com/courses/new-course-2/lessons/quadratic-equations-important-questions-quadratic-equations-important-questions-b/) - Quadratic Equations Important Questions - Quadratic Equations Important Questions (B) - [Quadratic Equations Important Questions - Quadratic Equations Important Questions (A)](https://mbsclasses.com/courses/new-course-2/lessons/quadratic-equations-important-questions-quadratic-equations-important-questions-a/) - Quadratic Equations Important Questions - Quadratic Equations Important Questions (A) - [Important Questions - Circle - In the fig. there are two concentric circles with centre O. If ARC and AQB are tangents to the smaller circle from the point A lying on the larger circle. find the length of AC. If AQ = 5 cm](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-circle-in-the-fig-there-are-two-concentric-circles-with-centre-o-if-arc-and-aqb-are-tangents-to-the-smaller-circle-from-the-point-a-lying-on-the-larger-circle-find-the-lengt/) - Important Questions - Circle - In the fig. there are two concentric circles with centre O. If ARC and AQB are tangents to the smaller circle from the point A lying on the larger circle. find the length of AC. If AQ = 5 cm - [Important Questions - Circle - A quadrilateral PQRS is drawn to circumscribe a circle. If PQ = 12 cm, QR = 15 cm and RS = 14 cm. find the length of SP](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-circle-a-quadrilateral-pqrs-is-drawn-to-circumscribe-a-circle-if-pq-12-cm-qr-15-cm-and-rs-14-cm-find-the-length-of-sp/) - Important Questions - Circle - A quadrilateral PQRS is drawn to circumscribe a circle. If PQ = 12 cm, QR = 15 cm and RS = 14 cm. find the length of SP - [Important Questions - Circle - In figure, AB is a chord of the circle and AOC is its diameter such that ∠ACB=50∘. If AT is the tangent to the circle at the point A, then What is the value of ∠BAT](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-circle-in-figure-ab-is-a-chord-of-the-circle-and-aoc-is-its-diameter-such-that-∠acb50∘-if-at-is-the-tangent-to-the-circle-at-the-point-a-then-what-is-the-va/) - Important Questions - Circle - In figure, AB is a chord of the circle and AOC is its diameter such that ∠ACB=50∘. If AT is the tangent to the circle at the point A, then What is the value of ∠BAT - [Important Questions - Circle - Let s denote the semi-perimeter of a triangle ABC in which BC=a , CA=b , AB=c.If a circle touches the sides BC , CA , AB ,at D , E , F ,respectively , prove that AF = AE = s-a, BD = BF = s-b and CD = CE = s-c](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-circle-let-s-denote-the-semi-perimeter-of-a-triangle-abc-in-which-bca-cab-abc-if-a-circle-touches-the-sides-bc-ca-ab-at-d-e-f-respectively-prove-that-af-ae/) - Important Questions - Circle - Let s denote the semi-perimeter of a triangle ABC in which BC=a , CA=b , AB=c.If a circle touches the sides BC , CA , AB ,at D , E , F ,respectively , prove that AF = AE = s-a, BD = BF = s-b and CD = CE - [Important Questions - Circle - Prove that the length of two tangents drawn from an external point to a circle are equal](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-circle-prove-that-the-length-of-two-tangents-drawn-from-an-external-point-to-a-circle-are-equal/) - Important Questions - Circle - Prove that the length of two tangents drawn from an external point to a circle are equal - [Important Questions - Pair of Linear Equations in Two Variables - A 2-digit number is such that the product of its digits is 24. If 18 is subtracted from the number, the digits interchange their places. Find the number](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-pair-of-linear-equations-in-two-variables-a-2-digit-number-is-such-that-the-product-of-its-digits-is-24-if-18-is-subtracted-from-the-number-the-digits-interchange-their-place/) - Important Questions - Pair of Linear Equations in Two Variables - A 2-digit number is such that the product of its digits is 24. If 18 is subtracted from the number, the digits interchange their places. Find the number - [Important Questions - Pair of Linear Equations in Two Variables - Two people are 16 km apart on a straight road. They start walking at the same time. If they walk towards each other with different speeds, they will meet in 2 hours. Had they walk](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-pair-of-linear-equations-in-two-variables-two-people-are-16-km-apart-on-a-straight-road-they-start-walking-at-the-same-time-if-they-walk-towards-each-other-with-different-spe/) - Important Questions - Pair of Linear Equations in Two Variables - Two people are 16 km apart on a straight road. They start walking at the same time. If they walk towards each other with different speeds, they will meet in 2 hours. Had they walked in same direction with same speeds as before, they - [Important Questions - Pair of Linear Equations in Two Variables - If three times the larger of two numbers is divided by the smaller, we get 4 as the quotient and 8 as the remainder. If five times the smaller is divided by the larger, we get 3 as the](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-pair-of-linear-equations-in-two-variables-if-three-times-the-larger-of-two-numbers-is-divided-by-the-smaller-we-get-4-as-the-quotient-and-8-as-the-remainder-if-five-times-the/) - Important Questions - Pair of Linear Equations in Two Variables - If three times the larger of two numbers is divided by the smaller, we get 4 as the quotient and 8 as the remainder. If five times the smaller is divided by the larger, we get 3 as the quotient and 5 as the - [Important Questions - Pair of Linear Equations in Two Variables - The boat goes 30 km upstream and 44 km downstream in 10 hours. In 13 hours,it can go 40 km upstream and 55km downstream. Determine the speed of stream and that of the boat in still water](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-pair-of-linear-equations-in-two-variables-the-boat-goes-30-km-upstream-and-44-km-downstream-in-10-hours-in-13-hoursit-can-go-40-km-upstream-and-55km-downstream-determine-the/) - Important Questions - Pair of Linear Equations in Two Variables - The boat goes 30 km upstream and 44 km downstream in 10 hours. In 13 hours,it can go 40 km upstream and 55km downstream. Determine the speed of stream and that of the boat in still water - [Important Questions - Pair of Linear Equations in Two Variables - If the system of equations 3x + y = 1 and (2k-1) x + (k-1) y = 2k +1 is Inconsistent ,then find the value of k](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-pair-of-linear-equations-in-two-variables-if-the-system-of-equations-3x-y-1-and-2k-1-x-k-1-y-2k-1-is-inconsistent-then-find-the-value-of-k/) - Important Questions - Pair of Linear Equations in Two Variables - If the system of equations 3x + y = 1 and (2k-1) x + (k-1) y = 2k +1 is Inconsistent ,then find the value of k - [Important Questions - Pair of Linear Equations in Two Variables - The number of solutions of 3x+y = 243 and 243x y = 3 is ..............](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-pair-of-linear-equations-in-two-variables-the-number-of-solutions-of-3xy-243-and-243x-y-3-is/) - Important Questions - Pair of Linear Equations in Two Variables - The number of solutions of 3x+y = 243 and 243x y = 3 is .............. - [Important Questions - Polynomials - If alpha and beta are the zeros of the polynomial 2x^2-4x+5,find the value of the following ....](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-polynomials-if-alpha-and-beta-are-the-zeros-of-the-polynomial-2x2-4x5find-the-value-of-the-following/) - Important Questions - Polynomials - If alpha and beta are the zeros of the polynomial 2x^2-4x+5,find the value of the following .... - [Important Questions - Polynomials - if a and b are the zeroes of x^2-x-2 , form a quadratic polynomial whose zeroes are 2a+1 and 2b+1](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-polynomials-if-a-and-b-are-the-zeroes-of-x2-x-2-form-a-quadratic-polynomial-whose-zeroes-are-2a1-and-2b1/) - Important Questions - Polynomials - if a and b are the zeroes of x^2-x-2 , form a quadratic polynomial whose zeroes are 2a+1 and 2b+1 - [Important Questions - Polynomials - If one zero of the quadratic polynomial x^2 + 3x + k is 2, then find the value of k](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-polynomials-if-one-zero-of-the-quadratic-polynomial-x2-3x-k-is-2-then-find-the-value-of-k/) - Important Questions - Polynomials - If one zero of the quadratic polynomial x^2 + 3x + k is 2, then find the value of k - [Important Questions - Polynomials - figure shows the graph of the polynomial f(x) = ax^2 + bx + c for which](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-polynomials-figure-shows-the-graph-of-the-polynomial-fx-ax2-bx-c-for-which/) - Important Questions - Polynomials - figure shows the graph of the polynomial f(x) = ax^2 + bx + c for which - [Important Questions - Real Numbers](https://mbsclasses.com/courses/new-course-2/lessons/important-questions-real-numbers/) - Let a and b be two positive integers such that a = p^3 q^4 and b = p^2 q^3, where p and q are prime numbers. If HCF(a,b) = p^m q^n and LCM(a,b) = p^r q^s , then (m+n)(r+s) = - [Mastering Your Success Circle - If PQ = 28 cm then find the perimeter of triangle PLM](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-circle-if-pq-28-cm-then-find-the-perimeter-of-triangle-plm/) - Mastering Your Success Circle - If PQ = 28 cm then find the perimeter of triangle PLM - [Mastering Your Success Circle Part 04](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-circle-part-04/) - Mastering Your Success Circle Part 04 - [Mastering Your Success Circle Part 03](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-circle-part-03/) - Mastering Your Success Circle Part 03 - [Mastering Your Success Circle Part 02](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-circle-part-02/) - Mastering Your Success Circle Part 02 - [Mastering Your Success Circle Part 01](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-circle-part-01/) - Mastering Your Success Circle Part 01 - [RS Aggarwal Trigonometric Identities Part 09](https://mbsclasses.com/courses/new-course-2/lessons/rs-aggarwal-trigonometric-identities-part-09/) - RS Aggarwal Trigonometric Identities Part 09 - [RS Aggarwal Trigonometric Identities Part 08](https://mbsclasses.com/courses/new-course-2/lessons/rs-aggarwal-trigonometric-identities-part-08/) - RS Aggarwal Trigonometric Identities Part 08 - [RS Aggarwal Trigonometric Identities Part 07](https://mbsclasses.com/courses/new-course-2/lessons/rs-aggarwal-trigonometric-identities-part-07/) - RS Aggarwal Trigonometric Identities Part 07 - [RS Aggarwal Trigonometric Identities Part 06](https://mbsclasses.com/courses/new-course-2/lessons/rs-aggarwal-trigonometric-identities-part-06/) - RS Aggarwal Trigonometric Identities Part 06 - [RS Aggarwal Trigonometric Identities Part 05](https://mbsclasses.com/courses/new-course-2/lessons/rs-aggarwal-trigonometric-identities-part-05/) - RS Aggarwal Trigonometric Identities Part 05 - [RS Aggarwal Trigonometric Identities Part 04](https://mbsclasses.com/courses/new-course-2/lessons/rs-aggarwal-trigonometric-identities-part-04/) - RS Aggarwal Trigonometric Identities Part 04 - [RS Aggarwal Trigonometric Identities Part 03](https://mbsclasses.com/courses/new-course-2/lessons/rs-aggarwal-trigonometric-identities-part-03/) - RS Aggarwal Trigonometric Identities Part 03 - [RS Aggarwal Trigonometric Identities Part 02](https://mbsclasses.com/courses/new-course-2/lessons/rs-aggarwal-trigonometric-identities-part-02/) - RS Aggarwal Trigonometric Identities Part 02 - [RS Aggarwal Trigonometric Identities Part 01](https://mbsclasses.com/courses/new-course-2/lessons/rs-aggarwal-trigonometric-identities-part-01/) - RS Aggarwal Trigonometric Identities Part 01 - [Mastering Your Success Trigonometry Part 04](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-trigonometry-part-04/) - Mastering Your Success Trigonometry Part 04 - [Mastering Your Success Trigonometry Part 03](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-trigonometry-part-03/) - Mastering Your Success Trigonometry Part 03 - [Mastering Your Success Trigonometry Part 02](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-trigonometry-part-02/) - Mastering Your Success Trigonometry Part 02 - [Mastering Your Success Trigonometry Part 01](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-trigonometry-part-01/) - Mastering Your Success Trigonometry Part 01 - [Mastering Your Success Board Preparation Part 07](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-board-preparation-part-07/) - Mastering Your Success Board Preparation Part 07 - [Mastering Your Success Board Preparation Part 06](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-board-preparation-part-06/) - Mastering Your Success Board Preparation Part 06 - [Mastering Your Success Board Preparation Part 05](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-board-preparation-part-05/) - Mastering Your Success Board Preparation Part 05 - [Mastering Your Success Board Preparation Part 04](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-board-preparation-part-04/) - Mastering Your Success Board Preparation Part 04 - [Mastering Your Success Board Preparation Part 03](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-board-preparation-part-03/) - Mastering Your Success Board Preparation Part 03 - [Mastering Your Success Board Preparation Part 02](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-board-preparation-part-02/) - Mastering Your Success Board Preparation Part 02 - [Mastering Your Success Board Preparation Part 01](https://mbsclasses.com/courses/new-course-2/lessons/mastering-your-success-board-preparation-part-01/) - Mastering Your Success Board Preparation Part 01 - [Class 10 Maths MCQ](https://mbsclasses.com/courses/new-course-2/lessons/class-10-maths-mcq/) - MCQ 01 Video - [Lines and Angles Ex 6.1 - Problem Solution 5](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/lines-and-angles-ex-6-1-problem-solution-5/) - Lines and Angles Ex 6.1 - Problem Solution 5 - [Lines and Angles Ex 6.1 - Problem Solution 4](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/lines-and-angles-ex-6-1-problem-solution-4/) - Lines and Angles Ex 6.1 - Problem Solution 4 - [Lines and Angles Ex 6.1 - Problem Solution 3](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/lines-and-angles-ex-6-1-problem-solution-3/) - Lines and Angles Ex 6.1 - Problem Solution 3 - [Lines and Angles Ex 6.1 - Problem Solution 2](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/lines-and-angles-ex-6-1-problem-solution-2/) - Lines and Angles Ex 6.1 - Problem Solution 2 - [Lines and Angles Ex 6.1 - Problem Solution 1](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/lines-and-angles-ex-6-1-problem-solution-1/) - Lines and Angles Ex 6.1 - Problem Solution 1 - [Linear Equation in two variables Ex 4.2 - All Problems in One](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/linear-equation-in-two-variables-ex-4-2-all-problems-in-one/) - Linear Equation in two variables Ex 4.2 - All Problems in One - [Linear Equation in two variables Ex 4.1 - All Problems in one](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/linear-equation-in-two-variables-ex-4-1-all-problems-in-one/) - Linear Equation in two variables Ex 4.1 - All Problems in one - [Coordinate Geometry Ex 3.2 - All Solutions in one](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/coordinate-geometry-ex-3-2-all-solutions-in-one/) - Coordinate Geometry Ex 3.2 - All Solutions in one - [Polynomials Ex 2.5 - Problem Solution 16 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-16-ii/) - Polynomials Ex 2.5 - Problem Solution 16 (ii) - [Polynomials Ex 2.5 - Problem Solution 16 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-16-i/) - Polynomials Ex 2.5 - Problem Solution 16 (i) - [Polynomials Ex 2.5 - Problem Solution 15 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-15-ii/) - Polynomials Ex 2.5 - Problem Solution 15 (ii) - [Polynomials Ex 2.5 - Problem Solution 15 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-15-i/) - Polynomials Ex 2.5 - Problem Solution 15 (i) - [Polynomials Ex 2.5 - Problem Solution 14 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-14-ii/) - Polynomials Ex 2.5 - Problem Solution 14 (ii) - [Polynomials Ex 2.5 - Problem Solution 14 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-14-i/) - Polynomials Ex 2.5 - Problem Solution 14 (i) - [Polynomials Ex 2.5 - Problem Solution 13](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-13/) - Polynomials Ex 2.5 - Problem Solution 13 - [Polynomials Ex 2.5 - Problem Solution 12](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-12/) - Polynomials Ex 2.5 - Problem Solution 12 - [Polynomials Ex 2.5 - Problem Solution 10 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-10-ii/) - Polynomials Ex 2.5 - Problem Solution 10 (ii) - [Polynomials Ex 2.5 - Problem Solution 10 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-10-i/) - Polynomials Ex 2.5 - Problem Solution 10 (i) - [Polynomials Ex 2.5 - Problem Solution 9 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-9-ii/) - Polynomials Ex 2.5 - Problem Solution 9 (ii) - [Polynomials Ex 2.5 - Problem Solution 9 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-9-i/) - Polynomials Ex 2.5 - Problem Solution 9 (i) - [Polynomials Ex 2.5 - Problem Solution 8 (v)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-8-v/) - Polynomials Ex 2.5 - Problem Solution 8 (v) - [Polynomials Ex 2.5 - Problem Solution 8 (iv)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-8-iv/) - Polynomials Ex 2.5 - Problem Solution 8 (iv) - [Polynomials Ex 2.5 - Problem Solution 8 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-8-iii/) - Polynomials Ex 2.5 - Problem Solution 8 (iii) - [Polynomials Ex 2.5 - Problem Solution 8 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-8-ii/) - Polynomials Ex 2.5 - Problem Solution 8 (ii) - [Polynomials Ex 2.5 - Problem Solution 8 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-8-i/) - Polynomials Ex 2.5 - Problem Solution 8 (i) - [Polynomials Ex 2.5 - Problem Solution 7 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-7-iii/) - Polynomials Ex 2.5 - Problem Solution 7 (iii) - [Polynomials Ex 2.5 - Problem Solution 7 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-7-ii/) - Polynomials Ex 2.5 - Problem Solution 7 (ii) - [Polynomials Ex 2.5 - Problem Solution 7 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-7-i/) - Polynomials Ex 2.5 - Problem Solution 7 (i) - [Polynomials Ex 2.5 - Problem Solution 6 (iv)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-6-iv/) - Polynomials Ex 2.5 - Problem Solution 6 (iv) - [Polynomials Ex 2.5 - Problem Solution 6 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-6-iii/) - Polynomials Ex 2.5 - Problem Solution 6 (iii) - [Polynomials Ex 2.5 - Problem Solution 6 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-6-ii/) - Polynomials Ex 2.5 - Problem Solution 6 (ii) - [Polynomials Ex 2.5 - Problem Solution 6 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-6-i/) - Polynomials Ex 2.5 - Problem Solution 6 (i) - [Polynomials Ex 2.5 - Problem Solution 5 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-5-ii/) - Polynomials Ex 2.5 - Problem Solution 5 (ii) - [Polynomials Ex 2.5 - Problem Solution 5 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-5-i/) - Polynomials Ex 2.5 - Problem Solution 5 (i) - [Polynomials Ex 2.5 - Problem Solution 4 (vi)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-4-vi/) - Polynomials Ex 2.5 - Problem Solution 4 (vi) - [Polynomials Ex 2.5 - Problem Solution 4 (v)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-4-v/) - Polynomials Ex 2.5 - Problem Solution 4 (v) - [Polynomials Ex 2.5 - Problem Solution 4 (iv)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-4-iv/) - Polynomials Ex 2.5 - Problem Solution 4 (iv) - [Polynomials Ex 2.5 - Problem Solution 4 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-4-iii/) - Polynomials Ex 2.5 - Problem Solution 4 (iii) - [Polynomials Ex 2.5 - Problem Solution 4 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-4-ii/) - Polynomials Ex 2.5 - Problem Solution 4 (ii) - [Polynomials Ex 2.5 - Problem Solution 4 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-4-i/) - Polynomials Ex 2.5 - Problem Solution 4 (i) - [Polynomials Ex 2.5 - Problem Solution 3 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-3-iii/) - Polynomials Ex 2.5 - Problem Solution 3 (iii) - [Polynomials Ex 2.5 - Problem Solution 3 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-3-ii/) - Polynomials Ex 2.5 - Problem Solution 3 (ii) - [Polynomials Ex 2.5 - Problem Solution 3 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-3-i/) - Polynomials Ex 2.5 - Problem Solution 3 (i) - [Polynomials Ex 2.5 - Problem Solution 2 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-2-iii/) - Polynomials Ex 2.5 - Problem Solution 2 (iii) - [Polynomials Ex 2.5 - Problem Solution 2 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-2-ii/) - Polynomials Ex 2.5 - Problem Solution 2 (ii) - [Polynomials Ex 2.5 - Problem Solution 2 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-2-i/) - Polynomials Ex 2.5 - Problem Solution 2 (i) - [Polynomials Ex 2.5 - Problem Solution 1 (v)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-1-v/) - Polynomials Ex 2.5 - Problem Solution 1 (v) - [Polynomials Ex 2.5 - Problem Solution 1 (iv)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-1-iv/) - Polynomials Ex 2.5 - Problem Solution 1 (iv) - [Polynomials Ex 2.5 - Problem Solution 1 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-1-iii/) - Polynomials Ex 2.5 - Problem Solution 1 (iii) - [Polynomials Ex 2.5 - Problem Solution 1 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-1-ii/) - Polynomials Ex 2.5 - Problem Solution 1 (ii) - [Polynomials Ex 2.5 - Problem Solution 1 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-5-problem-solution-1-i/) - Polynomials Ex 2.5 - Problem Solution 1 (i) - [Polynomials Ex 2.4 - Problem Solution 5 (iv)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-5-iv/) - Polynomials Ex 2.4 - Problem Solution 5 (iv) - [Polynomials Ex 2.4 - Problem Solution 5 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-5-iii/) - Polynomials Ex 2.4 - Problem Solution 5 (iii) - [Polynomials Ex 2.4 - Problem Solution 5 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-5-ii/) - Polynomials Ex 2.4 - Problem Solution 5 (ii) - [Polynomials Ex 2.4 - Problem Solution 5 (i) (By Long Division Method)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-5-i-by-long-division-method/) - Polynomials Ex 2.4 - Problem Solution 5 (i) (By Long Division Method) - [Polynomials Ex 2.4 - Problem Solution 5 (i) (By Simple Method)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-5-i-by-simple-method/) - Polynomials Ex 2.4 - Problem Solution 5 (i) (By Simple Method) - [Polynomials Ex 2.4 - Problem Solution 4 (iv)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-4-iv/) - Polynomials Ex 2.4 - Problem Solution 4 (iv) - [Polynomials Ex 2.4 - Problem Solution 4 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-4-iii/) - Polynomials Ex 2.4 - Problem Solution 4 (iii) - [Polynomials Ex 2.4 - Problem Solution 4 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-4-ii/) - Polynomials Ex 2.4 - Problem Solution 4 (ii) - [Polynomials Ex 2.4 - Problem Solution 4 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-4-i/) - Polynomials Ex 2.4 - Problem Solution 4 (i) - [Polynomials Ex 2.4 - Problem Solution 3 (iv)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-3-iv/) - Polynomials Ex 2.4 - Problem Solution 3 (iv) - [Polynomials Ex 2.4 - Problem Solution 3 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-3-iii/) - Polynomials Ex 2.4 - Problem Solution 3 (iii) - [Polynomials Ex 2.4 - Problem Solution 3 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-3-ii/) - Polynomials Ex 2.4 - Problem Solution 3 (ii) - [Polynomials Ex 2.4 - Problem Solution 3 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-3-i/) - Polynomials Ex 2.4 - Problem Solution 3 (i) - [Polynomials Ex 2.4 - Problem Solution 2 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-2-iii/) - Polynomials Ex 2.4 - Problem Solution 2 (iii) - [Polynomials Ex 2.4 - Problem Solution 2 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-2-i/) - Polynomials Ex 2.4 - Problem Solution 2 (i) - [Polynomials Ex 2.4 - Problem Solution 1 (iv)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-1-iv/) - Polynomials Ex 2.4 - Problem Solution 1 (iv) - [Polynomials Ex 2.4 - Problem Solution 1 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-1-iii/) - Polynomials Ex 2.4 - Problem Solution 1 (iii) - [Polynomials Ex 2.4 - Problem Solution 1 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-1-ii/) - Polynomials Ex 2.4 - Problem Solution 1 (ii) - [Polynomials Ex 2.4 - Problem Solution 1 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-4-problem-solution-1-i/) - Polynomials Ex 2.4 - Problem Solution 1 (i) - [Polynomials Ex 2.3 - Problem Solution 3](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-3-problem-solution-3/) - Polynomials Ex 2.3 - Problem Solution 3 - [Polynomials Ex 2.3 - Problem Solution 2](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-3-problem-solution-2/) - Polynomials Ex 2.3 - Problem Solution 2 - [Polynomials Ex 2.3 - Problem Solution 1 (v)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-3-problem-solution-1-v/) - Polynomials Ex 2.3 - Problem Solution 1 (v) - [Polynomials Ex 2.3 - Problem Solution 1 (iv)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-3-problem-solution-1-iv/) - Polynomials Ex 2.3 - Problem Solution 1 (iv) - [Polynomials Ex 2.3 - Problem Solution 1 (iii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-3-problem-solution-1-iii/) - Polynomials Ex 2.3 - Problem Solution 1 (iii) - [Polynomials Ex 2.3 - Problem Solution 1 (ii)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-3-problem-solution-1-ii/) - Polynomials Ex 2.3 - Problem Solution 1 (ii) - [Polynomials Ex 2.3 - Problem Solution 1 (i)](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-3-problem-solution-1-i/) - Polynomials Ex 2.3 - Problem Solution 1 (i) - [Polynomials Ex 2.2 - Problems Solution 4](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-2-problems-solution-4/) - Polynomials Ex 2.2 - Problems Solution 4 - [Polynomials Ex 2.2 - Problems Solution 3](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-2-problems-solution-3/) - Polynomials Ex 2.2 - Problems Solution 3 - [Polynomials Ex 2.2 - Problems Solution 2](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-2-problems-solution-2/) - Polynomials Ex 2.2 - Problems Solution 2 - [Polynomials Ex 2.2 - Problems Solution 1](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-2-problems-solution-1/) - Polynomials Ex 2.2 - Problems Solution 1 - [Polynomials Ex 2.1 - Problem Solution 5](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-1-problem-solution-5/) - Polynomials Ex 2.1 - Problem Solution 5 - [Polynomials Ex 2.1 - Problem Solution 4](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-1-problem-solution-4/) - Polynomials Ex 2.1 - Problem Solution 4 - [Polynomials Ex 2.1 - Problem Solution 3](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-1-problem-solution-3/) - Polynomials Ex 2.1 - Problem Solution 3 - [Polynomials Ex 2.1 - Problem Solution 2](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-1-problem-solution-2/) - Polynomials Ex 2.1 - Problem Solution 2 - [Polynomials Ex 2.1 - Problem Solution 1](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/polynomials-ex-2-1-problem-solution-1/) - Polynomials Ex 2.1 - Problem Solution 1 - [Number System Ex 1.5 - Problem Solution 3](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-5-problem-solution-3/) - Number System Ex 1.5 - Problem Solution 3 - [Number System Ex 1.5 - Problem Solution 2](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-5-problem-solution-2/) - Number System Ex 1.5 - Problem Solution 2 - [Number System Ex 1.5 - Problem Solution 1](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-5-problem-solution-1/) - Number System Ex 1.5 - Problem Solution 1 - [Number System Ex 1.4 - Problem Solution 5](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-4-problem-solution-5/) - Number System Ex 1.4 - Problem Solution 5 - [Number System Ex 1.4 - Problem Solution 2](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-4-problem-solution-2/) - Number System Ex 1.4 - Problem Solution 2 - [Number System Ex 1.4 - Problem Solution 1](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-4-problem-solution-1/) - Number System Ex 1.4 - Problem Solution 1 - [Number System Ex 1.3 - Problem Solution 9](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-3-problem-solution-9/) - Number System Ex 1.3 - Problem Solution 9 - [Number System Ex 1.3 - Problem Solution 8](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-3-problem-solution-8/) - Number System Ex 1.3 - Problem Solution 8 - [Number System Ex 1.3 - Problem Solution 7](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-3-problem-solution-7/) - Number System Ex 1.3 - Problem Solution 7 - [Number System Ex 1.3 - Problem Solution 6](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-3-problem-solution-6/) - Number System Ex 1.3 - Problem Solution 6 - [Number System Ex 1.3 - Problem Solution 5](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-3-problem-solution-5/) - Number System Ex 1.3 - Problem Solution 5 - [Number System Ex 1.3 - Problem Solution 4](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-3-problem-solution-4/) - Number System Ex 1.3 - Problem Solution 4 - [Number System Ex 1.3 - Problem Solution 3](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-3-problem-solution-3/) - Number System Ex 1.3 - Problem Solution 3 - [Number System Ex 1.3 - Problems Solution 1 & 2](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-3-problems-solution-1-2/) - Number System Ex 1.3 - Problems Solution 1 & 2 - [Number System Ex 1.2](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-2/) - Ex 1.2 All Problems in one - [Number System Ex 1.1](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/number-system-ex-1-1/) - Ex 1.1 All Problems in one - [Heron's Formula - An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find the area of the triangle](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/herons-formula-an-isosceles-triangle-has-perimeter-30-cm-and-each-of-the-equal-sides-is-12-cm-find-the-area-of-the-triangle/) - An isosceles triangle has perimeter 30 cm and each of the equal sides is 12 cm. Find the area of the triangle - [Heron's Formula - Sides of a triangle are in the ratio of 12:17:25 and its perimeter is 540 cm Find its area](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/herons-formula-sides-of-a-triangle-are-in-the-ratio-of-121725-and-its-perimeter-is-540-cm-find-its-area/) - Sides of a triangle are in the ratio of 12:17:25 and its perimeter is 540 cm Find its area - [Heron's Formula - Find the area of a triangle two sides of which are 18cm and 10cm and the perimeter is 42 cm](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/herons-formula-find-the-area-of-a-triangle-two-sides-of-which-are-18cm-and-10cm-and-the-perimeter-is-42-cm/) - Find the area of a triangle two sides of which are 18cm and 10cm and the perimeter is 42 cm - [Heron's Formula - There is a slide in a park. One of its side walls has been painted in some colour with a message “KEEP THE PARK GREEN AND CLEAN” (see Fig. 12.10 ). If the sides of the wall are 15 m, 11 m and 6 m, find the area painted in colour.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/herons-formula-there-is-a-slide-in-a-park-one-of-its-side-walls-has-been-painted-in-some-colour-with-a-message-keep-the-park-green-and-clean-see-fig-12-10-if-the-sides-of-th/) - There is a slide in a park. One of its side walls has been painted in some colour with a message “KEEP THE PARK GREEN AND CLEAN” (see Fig. 12.10 ). If the sides of the wall are 15 m, 11 m and 6 m, find the area painted in colour. - [Heron's Formula - The triangular side walls of a flyover have been used for advertisements. The sides of the walls are 122 m, 22 m and 120 m (see Fig. 10.6). The advertisements yield an earning of Rs. 5000 per m2 per year.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/herons-formula-the-triangular-side-walls-of-a-flyover-have-been-used-for-advertisements-the-sides-of-the-walls-are-122-m-22-m-and-120-m-see-fig-10-6-the-advertisements-yield-an-earning-of-rs/) - The triangular side walls of a flyover have been used for advertisements. The sides of the walls are 122 m, 22 m and 120 m (see Fig. 10.6). The advertisements yield an earning of Rs. 5000 per m2 per year. A company hired one of its walls for 3 months. How much rent did it - [Heron's Formula - A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side ‘a’. Find the area of the signal board, using Heron’s formula. If its perimeter is 180 cm, what will be the area of the signal board?](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/herons-formula-a-traffic-signal-board-indicating-school-ahead-is-an-equilateral-triangle-with-side-a-find-the-area-of-the-signal-board-using-herons/) - A traffic signal board, indicating ‘SCHOOL AHEAD’, is an equilateral triangle with side ‘a’. Find the area of the signal board, using Heron’s formula. If its perimeter is 180 cm, what will be the area of the signal board? - [Important Problems - Circles - Prove that a cyclic parallelogram is a rectangle](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-prove-that-a-cyclic-parallelogram-is-a-rectangle/) - Prove that a cyclic parallelogram is a rectangle - [Important Problems - Circles - ABC and ADC are two right triangles with common hypotenuse AC Prove that ∠ CAD = ∠ CBD](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-abc-and-adc-are-two-right-triangles-with-common-hypotenuse-ac-prove-that-∠-cad-∠-cbd/) - ABC and ADC are two right triangles with common hypotenuse AC Prove that ∠ CAD = ∠ CBD - [Important Problems - Circles - If circles are drawn taking two sides of a triangle as diameters, prove that the point of intersection of these circles lie on the third side](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-if-circles-are-drawn-taking-two-sides-of-a-triangle-as-diameters-prove-that-the-point-of-intersection-of-these-circles-lie-on-the-third-side/) - If circles are drawn taking two sides of a triangle as diameters, prove that the point of intersection of these circles lie on the third side - [Important Problems - Circles - In Fig A, B, C and D are four points on a such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-in-fig-a-b-c-and-d-are-four-points-on-a-such-that-∠-bec-130-and-∠-ecd-20-find-∠-bac/) - In Fig A, B, C and D are four points on a such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC - [Important Problems - Circles - If the non parallel sides of a trapezium are equal, prove that it is cyclic.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-if-the-non-parallel-sides-of-a-trapezium-are-equal-prove-that-it-is-cyclic/) - If the non parallel sides of a trapezium are equal, prove that it is cyclic. - [Important Problems - Circles - If diagonals of a cyclic quadrilateral are diameters of the circle through the vertices of the quadrilateral, prove that it is a rectangle.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-if-diagonals-of-a-cyclic-quadrilateral-are-diameters-of-the-circle-through-the-vertices-of-the-quadrilateral-prove-that-it-is-a-rectangle/) - If diagonals of a cyclic quadrilateral are diameters of the circle through the vertices of the quadrilateral, prove that it is a rectangle. - [Important Problems - Circles - ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If ∠ DBC = 70°, ∠ BAC is 30°, find ∠ BCD. Further, if AB = BC, find ∠ ECD.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-abcd-is-a-cyclic-quadrilateral-whose-diagonals-intersect-at-a-point-e-if-∠-dbc-70-∠-bac-is-30-find-∠-bcd-further-if-ab-bc-f/) - ABCD is a cyclic quadrilateral whose diagonals intersect at a point E. If ∠ DBC = 70°, ∠ BAC is 30°, find ∠ BCD. Further, if AB = BC, find ∠ ECD. - [Important Problems - Circles - In Fig. 10.39, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-in-fig-10-39-a-b-c-and-d-are-four-points-on-a-circle-ac-and-bd-intersect-at-a-point-e-such-that-∠-bec-130-and-∠-ecd-20-find/) - In Fig. 10.39, A, B, C and D are four points on a circle. AC and BD intersect at a point E such that ∠ BEC = 130° and ∠ ECD = 20°. Find ∠ BAC - [Important Problems - Circles - In Fig 10 38, ∠ ABC = 69°, ∠ ACB = 31°, find ∠ BDC](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-in-fig-10-38-∠-abc-69-∠-acb-31-find-∠-bdc/) - In Fig 10 38, ∠ ABC = 69°, ∠ ACB = 31°, find ∠ BDC - [Important Problems - Circles - In Fig. 10.37, ∠ PQR = 100°, where P, Q and R are points on a circle with centre O. Find ∠ OPR](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-in-fig-10-37-∠-pqr-100-where-p-q-and-r-are-points-on-a-circle-with-centre-o-find-∠-opr/) - In Fig. 10.37, ∠ PQR = 100°, where P, Q and R are points on a circle with centre O. Find ∠ OPR - [Important Problems - Circles - A chord of a circle is equal to the radius of the circle. Find the angle subtended by the chord at a point on the minor arc and also at a point on the major arc](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-a-chord-of-a-circle-is-equal-to-the-radius-of-the-circle-find-the-angle-subtended-by-the-chord-at-a-point-on-the-minor-arc-and-also-at-a-point-on-the-major-arc/) - A chord of a circle is equal to the radius of the circle. Find the angle subtended by the chord at a point on the minor arc and also at a point on the major arc - [Important Problems - Circles - In Fig. 10.36, A,B and C are three points on a circle with centre O such that ∠ BOC = 30° and ∠ AOB = 60°. If D is a point on the circle other than the arc ABC, find ∠ADC.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-in-fig-10-36-ab-and-c-are-three-points-on-a-circle-with-centre-o-such-that-∠-boc-30-and-∠-aob-60-if-d-is-a-point-on-the-circle-other/) - In Fig. 10.36, A,B and C are three points on a circle with centre O such that ∠ BOC = 30° and ∠ AOB = 60°. If D is a point on the circle other than the arc ABC, find ∠ADC. - [Important Problems - Circles - A circular park of radius 20m is situated in a colony. Three boys Ankur, Syed and David are sitting at equal distance on its boundary each having a toy telephone in his hands to talk each other. Find the length of](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-a-circular-park-of-radius-20m-is-situated-in-a-colony-three-boys-ankur-syed-and-david-are-sitting-at-equal-distance-on-its-boundary-each-having-a-toy-telephone-in-his/) - A circular park of radius 20m is situated in a colony. Three boys Ankur, Syed and David are sitting at equal distance on its boundary each having a toy telephone in his hands to talk each other. Find the length of the string of each phone. - [Important Problems - Circles - Three girls Reshma, Salma and Mandip are playing a game by standing on a circle of radius 5m drawn in a park. Reshma throws a ball to Salma, Salma to Mandip, Mandip to Reshma. If the distance between Reshma and Salma](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-three-girls-reshma-salma-and-mandip-are-playing-a-game-by-standing-on-a-circle-of-radius-5m-drawn-in-a-park-reshma-throws-a-ball-to-salma-salma-to-mandip-mandip-to-r/) - Three girls Reshma, Salma and Mandip are playing a game by standing on a circle of radius 5m drawn in a park. Reshma throws a ball to Salma, Salma to Mandip, Mandip to Reshma. If the distance between Reshma and Salma and between Salma and Mandip is 6m each, what is the distance between Reshma - [Important Problems - Circles - If a line intersects two concentric circles (circles with the same centre) with centre O at A, B, C and D, prove that AB = CD (see Fig. 10.25).](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-if-a-line-intersects-two-concentric-circles-circles-with-the-same-centre-with-centre-o-at-a-b-c-and-d-prove-that-ab-cd-see-fig-10-25/) - If a line intersects two concentric circles (circles with the same centre) with centre O at A, B, C and D, prove that AB = CD (see Fig. 10.25). - [Important Problems - Circles - If two equal chords of a circle intersect within the circle prove that the line joining the point of intersection to the centre makes equal angles with the chords](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-if-two-equal-chords-of-a-circle-intersect-within-the-circle-prove-that-the-line-joining-the-point-of-intersection-to-the-centre-makes-equal-angles-with-the-chords/) - If two equal chords of a circle intersect within the circle prove that the line joining the point of intersection to the centre makes equal angles with the chords - [Important Problems - Circles - If two equal chords of a circle intersect within the circle, prove that the segments of one chord are equal to corresponding segments of the other chord.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-if-two-equal-chords-of-a-circle-intersect-within-the-circle-prove-that-the-segments-of-one-chord-are-equal-to-corresponding-segments-of-the-other-chord/) - If two equal chords of a circle intersect within the circle, prove that the segments of one chord are equal to corresponding segments of the other chord. - [Important Problems - Circles - Two circles of radii 5 cm and 3 cm intersect at two points and the distance between their centres is 4 cm Find the length of the common chord](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-two-circles-of-radii-5-cm-and-3-cm-intersect-at-two-points-and-the-distance-between-their-centres-is-4-cm-find-the-length-of-the-common-chord/) - Two circles of radii 5 cm and 3 cm intersect at two points and the distance between their centres is 4 cm Find the length of the common chord - [Important Problems - Circles - Prove that if chords of congruent circles subtend equal angles at their centres then the chords are equal](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-prove-that-if-chords-of-congruent-circles-subtend-equal-angles-at-their-centres-then-the-chords-are-equal/) - Prove that if chords of congruent circles subtend equal angles at their centres then the chords are equal - [Important Problems - Circles - Recall that two circles are congruent if they have the same radii. Prove that equal chords of congruent circles subtend equal angles at their centres.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-recall-that-two-circles-are-congruent-if-they-have-the-same-radii-prove-that-equal-chords-of-congruent-circles-subtend-equal-angles-at-their-centres/) - Recall that two circles are congruent if they have the same radii. Prove that equal chords of congruent circles subtend equal angles at their centres. - [Important Problems - Circles - Equal chords of a circle subtend equal angles at the center.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-circles-equal-chords-of-a-circle-subtend-equal-angles-at-the-center/) - Equal chords of a circle subtend equal angles at the center. - [Important Problems - Surface Area & Volume - A conical tent is 10 m high and the radius of its base is 24 m Find slant height of the tent cost of the canvas required to make the tent if the cost of 1 m2 canvas is Rs 70](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-surface-area-volume-a-conical-tent-is-10-m-high-and-the-radius-of-its-base-is-24-m-find-slant-height-of-the-tent-cost-of-the-canvas-required-to-make-the-tent-if-the-cost-of-1/) - A conical tent is 10 m high and the radius of its base is 24 m Find slant height of the tent cost of the canvas required to make the tent if the cost of 1 m2 canvas is Rs 70 - [Important Problems - Surface Area & Volume - Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved surface area](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-surface-area-volume-diameter-of-the-base-of-a-cone-is-10-5-cm-and-its-slant-height-is-10-cm-find-its-curved-surface-area/) - Diameter of the base of a cone is 10.5 cm and its slant height is 10 cm. Find its curved surface area - [Important Problems - Quadrilateral - ABC is a triangle right angled at C. A line through the mid-point M of hypotenuse AB and parallel to BC intersects AC at D. Show that (i) D is the mid-point of AC (ii) MD ⊥ AC (iii) CM = MA = 1 / 2 AB](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-abc-is-a-triangle-right-angled-at-c-a-line-through-the-mid-point-m-of-hypotenuse-ab-and-parallel-to-bc-intersects-ac-at-d-show-that-i-d-is-the-mid-point-of-ac/) - ABC is a triangle right angled at C. A line through the mid-point M of hypotenuse AB and parallel to BC intersects AC at D. Show that (i) D is the mid-point of AC (ii) MD ⊥ AC (iii) CM = MA = 1 / 2 AB - [Important Problems - Quadrilateral - Show that the line segments joining the mid-points of the opposite sides of a quadrilateral bisect each other](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-show-that-the-line-segments-joining-the-mid-points-of-the-opposite-sides-of-a-quadrilateral-bisect-each-other/) - Show that the line segments joining the mid-points of the opposite sides of a quadrilateral bisect each other - [Important Problems - Quadrilateral - In a parallelogram ABCD, E and F are the mid-points of sides AB and CD respectively. Show that the line segments AF and EC trisect the diagonal BD.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-in-a-parallelogram-abcd-e-and-f-are-the-mid-points-of-sides-ab-and-cd-respectively-show-that-the-line-segments-af-and-ec-trisect-the-diagonal-bd/) - In a parallelogram ABCD, E and F are the mid-points of sides AB and CD respectively. Show that the line segments AF and EC trisect the diagonal BD. - [Important Problems - Quadrilateral - ABCD is a trapezium in which AB DC, BD is a diagonal and E is the mid-point of AD. A line is drawn through E parallel to AB intersecting BC at F. Show that F is the mid-point of BC.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-abcd-is-a-trapezium-in-which-ab-dc-bd-is-a-diagonal-and-e-is-the-mid-point-of-ad-a-line-is-drawn-through-e-parallel-to-ab-intersecting-bc-at-f-show-that-f-is-th/) - ABCD is a trapezium in which AB DC, BD is a diagonal and E is the mid-point of AD. A line is drawn through E parallel to AB intersecting BC at F. Show that F is the mid-point of BC. - [Important Problems - Quadrilateral - ABCD is a rectangle and P, Q, R and S are mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rhombus](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-abcd-is-a-rectangle-and-p-q-r-and-s-are-mid-points-of-the-sides-ab-bc-cd-and-da-respectively-show-that-the-quadrilateral-pqrs-is-a-rhombus/) - ABCD is a rectangle and P, Q, R and S are mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rhombus - [Important Problems - Quadrilateral - ABCD is a rhombus and P, Q, R and S are the mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rectangle.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-abcd-is-a-rhombus-and-p-q-r-and-s-are-the-mid-points-of-the-sides-ab-bc-cd-and-da-respectively-show-that-the-quadrilateral-pqrs-is-a-rectangle/) - ABCD is a rhombus and P, Q, R and S are the mid-points of the sides AB, BC, CD and DA respectively. Show that the quadrilateral PQRS is a rectangle. - [Important Problems - Quadrilateral - ABCD is a quadrilateral in which P, Q, R and S are midpoints of the sides AB, BC, CD and DA see Fig 8.29 AC is a diagonal Show that](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-abcd-is-a-quadrilateral-in-which-p-q-r-and-s-are-midpoints-of-the-sides-ab-bc-cd-and-da-see-fig-8-29-ac-is-a-diagonal-show-that/) - ABCD is a quadrilateral in which P, Q, R and S are midpoints of the sides AB, BC, CD and DA see Fig 8.29 AC is a diagonal Show that - [Important Problems - Quadrilateral - ABCD is a trapezium in which AB is parallel to CD and AD = BC Show that](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-abcd-is-a-trapezium-in-which-ab-is-parallel-to-cd-and-ad-bc-show-that/) - ABCD is a trapezium in which AB is parallel to CD and AD = BC Show that - [Important Problems - Quadrilateral - In Δ ABC and Δ DEF, AB = DE, AB DE, BC = EF and BC EF. Vertices A, B and C are joined to vertices D, E and F respectively (see Fig. 8.22). Show that](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-in-δ-abc-and-δ-def-ab-de-ab-de-bc-ef-and-bc-ef-vertices-a-b-and-c-are-joined-to-vertices-d-e-and-f-respectively-see-fig-8-22-show-that/) - In Δ ABC and Δ DEF, AB = DE, AB DE, BC = EF and BC EF. Vertices A, B and C are joined to vertices D, E and F respectively (see Fig. 8.22). Show that - [Important Problems - Quadrilateral - ABCD is a parallelogram and AP and CQ are perpendiculars from vertices A and C on diagonal BD (see figure). Show that](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-abcd-is-a-parallelogram-and-ap-and-cq-are-perpendiculars-from-vertices-a-and-c-on-diagonal-bd-see-figure-show-that/) - ABCD is a parallelogram and AP and CQ are perpendiculars from vertices A and C on diagonal BD (see figure). Show that - [Important Problems - Quadrilateral - In parallelogram ABCD, two points P and Q are taken on diagonal BD such that DP = BQ](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-in-parallelogram-abcd-two-points-p-and-q-are-taken-on-diagonal-bd-such-that-dp-bq/) - In parallelogram ABCD, two points P and Q are taken on diagonal BD such that DP = BQ - [Important Problems - Quadrilateral - ABCD is a rectangle in which diagonal AC bisects angle A as well as angle C Show that ABCD is a square](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-abcd-is-a-rectangle-in-which-diagonal-ac-bisects-angle-a-as-well-as-angle-c-show-that-abcd-is-a-square/) - ABCD is a rectangle in which diagonal AC bisects angle A as well as angle C Show that ABCD is a square - [Important Problems - Quadrilateral - Diagonal AC of a parallelogram ABCD bisects A. Show that it bisects c also ABCD is a rhombus](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-diagonal-ac-of-a-parallelogram-abcd-bisects-a-show-that-it-bisects-c-also-abcd-is-a-rhombus/) - Diagonal AC of a parallelogram ABCD bisects A. Show that it bisects c also ABCD is a rhombus - [Important Problems - Quadrilateral - If the diagonals of a parallelogram are equal, then show that it is a rectangle](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-if-the-diagonals-of-a-parallelogram-are-equal-then-show-that-it-is-a-rectangle/) - If the diagonals of a parallelogram are equal, then show that it is a rectangle - [Important Problems - Quadrilateral - Show that the diagonals of a rhombus are perpendicular to each other](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-show-that-the-diagonals-of-a-rhombus-are-perpendicular-to-each-other/) - Show that the diagonals of a rhombus are perpendicular to each other - [Important Problems - Quadrilateral - Quadrilateral Theorem 8.1 A diagonal of a parallelogram divides it into two congruent triangles.](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-quadrilateral-quadrilateral-theorem-8-1-a-diagonal-of-a-parallelogram-divides-it-into-two-congruent-triangles/) - Quadrilateral Theorem 8.1 A diagonal of a parallelogram divides it into two congruent triangles. - [Important Problems - Polynomial - Part 02](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-polynomial-part-02/) - Important Problems - Polynomial - Part 02 - [Important Problems - Polynomial - Part 01](https://mbsclasses.com/courses/best-free-videos-for-class-9-maths-master-concepts-with-ease/lessons/important-problems-polynomial-part-01/) - Important Problems Polynomial PART01 - [Rational Numbers - Problem Solution 10-11](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/rational-numbers-problem-solution-10-11/) - Problem Solution 10-11 - [Rational Numbers - Problem Solution 7-8-9](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/rational-numbers-problem-solution-7-8-9/) - Problem Solution 7-8-9 - [Rational Numbers - Problem Solution 5](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/rational-numbers-problem-solution-5/) - Problem Solution 5 - [Rational Numbers - Problem Solution 4](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/rational-numbers-problem-solution-4/) - Problem Solution 4 - [Rational Numbers - Problem Solution 3](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/rational-numbers-problem-solution-3/) - Problem Solution 3 - [Rational Numbers - Problem Solution 2](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/rational-numbers-problem-solution-2/) - Problem Solution 2 - [Rational Numbers - Problem Solution 1](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/rational-numbers-problem-solution-1/) - Problem Solution 1 - [Factorisation - Find the common factors of the given terms.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/factorisation-find-the-common-factors-of-the-given-terms/) - Find the common factors of the given terms. - [Factorisation - factorize (x)^4 - (x - z)^4](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/factorisation-factorize-x4-x-z4/) - factorize (x)^4 - (x - z)^4 - [Exponents and Powers - Evaluate Exponents and Powers](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/exponents-and-powers-evaluate-exponents-and-powers/) - Evaluate Exponents and Powers - [Exponents and Powers - Simplify and express the result in power notation with positive exponent](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/exponents-and-powers-simplify-and-express-the-result-in-power-notation-with-positive-exponent/) - Simplify and express the result in power notation with positive exponent - [Linear Equation in One Variable](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/linear-equation-in-one-variable/) - Important Problems related to Linear Equation in One Variable - [Cuboid - A jewelry box is in the shape of a cuboid of volume 13,400 cm^3. If its height is 20 cm, then find the area of its base.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cuboid-a-jewelry-box-is-in-the-shape-of-a-cuboid-of-volume-13400-cm3-if-its-height-is-20-cm-then-find-the-area-of-its-base/) - A jewelry box is in the shape of a cuboid of volume 13,400 cm^3. If its height is 20 cm, then find the area of its base. - [Cuboid - Which has a greater volume a cuboidal box measuring 121 cm x 40 cm x 8 cm or a cuboidal box measuring 2.1 cm x 130 cm x 0.5 m](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cuboid-which-has-a-greater-volume-a-cuboidal-box-measuring-121-cm-x-40-cm-x-8-cm-or-a-cuboidal-box-measuring-2-1-cm-x-130-cm-x-0-5-m/) - Which has a greater volume a cuboidal box measuring 121 cm x 40 cm x 8 cm or a cuboidal box measuring 2.1 cm x 130 cm x 0.5 m - [Cuboid - The bottom of a cuboidal oil tank measures 3.5 m x 2 m. Find its depth if it can contain 7,000 litres of oil.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cuboid-the-bottom-of-a-cuboidal-oil-tank-measures-3-5-m-x-2-m-find-its-depth-if-it-can-contain-7000-litres-of-oil/) - The bottom of a cuboidal oil tank measures 3.5 m x 2 m. Find its depth if it can contain 7,000 litres of oil. - [Cuboid - Find the number of cakes of soap each measuring 9cm x 5cm x 2cm that can be placed in a big container measuring 1.5 m x 0.9m x 0.5 m](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cuboid-find-the-number-of-cakes-of-soap-each-measuring-9cm-x-5cm-x-2cm-that-can-be-placed-in-a-big-container-measuring-1-5-m-x-0-9m-x-0-5-m/) - Find the number of cakes of soap each measuring 9cm x 5cm x 2cm that can be placed in a big container measuring 1.5 m x 0.9m x 0.5 m - [Cuboid - A cuboidal metal container 8.4 m long , 80 cm wide, and 1.2 m deep is filled with milk. Find the volume of milk in liters.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cuboid-a-cuboidal-metal-container-8-4-m-long-80-cm-wide-and-1-2-m-deep-is-filled-with-milk-find-the-volume-of-milk-in-liters/) - A cuboidal metal container 8.4 m long , 80 cm wide, and 1.2 m deep is filled with milk. Find the volume of milk in liters. - [Cuboid - Two cubes of side 8 cm are joined end to end. Find the volume of the resulting cuboid.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cuboid-two-cubes-of-side-8-cm-are-joined-end-to-end-find-the-volume-of-the-resulting-cuboid/) - Two cubes of side 8 cm are joined end to end. Find the volume of the resulting cuboid. - [Cuboid - A pencil box measures 12 cm x 8 cm x 1.5 cm. What will be the volume of the box containing 2 dozen such pencil boxes](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cuboid-a-pencil-box-measures-12-cm-x-8-cm-x-1-5-cm-what-will-be-the-volume-of-the-box-containing-2-dozen-such-pencil-boxes/) - A pencil box measures 12 cm x 8 cm x 1.5 cm. What will be the volume of the box containing 2 dozen such pencil boxes - [Cuboid - The volume of a container is 0.9 m^3 . If it is 50 cm long and 120 cm wide, then find its depth](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cuboid-the-volume-of-a-container-is-0-9-m3-if-it-is-50-cm-long-and-120-cm-wide-then-find-its-depth/) - The volume of a container is 0.9 m^3 . If it is 50 cm long and 120 cm wide, then find its depth - [Cubes](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cubes/) - Find the side of the cube having volume 1,728 cm^3 - [Cuboid - Complete the following table](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cuboid-complete-the-following-table/) - Complete the following table - [Direct and Inverse Proportions 04](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/direct-and-inverse-proportions-04/) - All Problems in One Shot - [Direct and Inverse Proportions 03](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/direct-and-inverse-proportions-03/) - All Problems in One Shot - [Direct and Inverse Proportions 02](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/direct-and-inverse-proportions-02/) - All Problems in One Shot - [Direct and Inverse Proportions 01](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/direct-and-inverse-proportions-01/) - All Problems in One Shot - [Cube and Cube Root Ex 6.2](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cube-and-cube-root-ex-6-2/) - All Problems in One Shot - [Cube and Cube Root Ex 6.1](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/cube-and-cube-root-ex-6-1/) - All Problems in One Shot - [Comparing Quantities Ex 7.3](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantities-ex-7-3/) - All Problems in One Shot - [Comparing Quantities Ex 7 2](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantities-ex-7-2/) - All Problems in One Shot - [Comparing Quantities Ex 7.1](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantities-ex-7-1/) - All Problems in One Shot - [Comparing Quantity - Find the CI on Rs 2,500 at 10% per annum compounded annually for 2 years](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-find-the-ci-on-rs-2500-at-10-per-annum-compounded-annually-for-2-years/) - Find the CI on Rs 2,500 at 10% per annum compounded annually for 2 years - [Comparing Quantity - The CP of 25 articles is equal to the SP of 30 articles. Find the profit or loss percentage.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-the-cp-of-25-articles-is-equal-to-the-sp-of-30-articles-find-the-profit-or-loss-percentage/) - The CP of 25 articles is equal to the SP of 30 articles. Find the profit or loss percentage. - [Comparing Quantity - A trader purchased 40 pens for Rs. 300 and then sold them for Rs. 10 per pen. Find the profit percentage](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-trader-purchased-40-pens-for-rs-300-and-then-sold-them-for-rs-10-per-pen-find-the-profit-percentage/) - A trader purchased 40 pens for Rs. 300 and then sold them for Rs. 10 per pen. Find the profit percentage - [Comparing Quantity - A dealer purchased an antique vase Rs. 650 and spent Rs. 150 on its polishing. He then sold the same vase for Rs. 900. Find his net profit or net loss percentage.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-dealer-purchased-an-antique-vase-rs-650-and-spent-rs-150-on-its-polishing-he-then-sold-the-same-vase-for-rs-900-find-his-net-profit-or-net-loss-percentage/) - A dealer purchased an antique vase Rs. 650 and spent Rs. 150 on its polishing. He then sold the same vase for Rs. 900. Find his net profit or net loss percentage. - [Comparing Quantity - A person bought a second hand TV for Rs 5,000. He spent Rs 200 on its transportation and Rs. 600 on its repairs. He then sold it for Rs. 5,500. Find the loss or gain percentage.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-person-bought-a-second-hand-tv-for-rs-5000-he-spent-rs-200-on-its-transportation-and-rs-600-on-its-repairs-he-then-sold-it-for-rs-5500-find-the-loss-or-gain-percentage/) - A person bought a second hand TV for Rs 5,000. He spent Rs 200 on its transportation and Rs. 600 on its repairs. He then sold it for Rs. 5,500. Find the loss or gain percentage. - [Comparing Quantity - By selling an article for ₹1170, a shopkeeper earns a profit of 30%. Find the CP of the article](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-by-selling-an-article-for-₹1170-a-shopkeeper-earns-a-profit-of-30-find-the-cp-of-the-article/) - By selling an article for ₹1170, a shopkeeper earns a profit of 30%. Find the CP of the article - [Comparing Quantity - A shopkeeper purchased two suitcases for Rs 2500 each. He gained 10% on selling one and lost 20% on selling the other. Find his overall gain or loss percentage](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-shopkeeper-purchased-two-suitcases-for-rs-2500-each-he-gained-10-on-selling-one-and-lost-20-on-selling-the-other-find-his-overall-gain-or-loss-percentage/) - A shopkeeper purchased two suitcases for Rs 2500 each. He gained 10% on selling one and lost 20% on selling the other. Find his overall gain or loss percentage - [Comparing Quantity - If Ayush sells his CD player for Rs. 4,250, then he losses 15%. Find the selling price of the CD player so Ayush can gain 20%.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-if-ayush-sells-his-cd-player-for-rs-4250-then-he-losses-15-find-the-selling-price-of-the-cd-player-so-ayush-can-gain-20/) - If Ayush sells his CD player for Rs. 4,250, then he losses 15%. Find the selling price of the CD player so Ayush can gain 20%. - [Comparing Quantity - Ram borrowed an education loan of Rs. 12,000 for his son for 2 years at 12.5% per annum. Find the amount payable by Ram at the end of 2 years if the interest is compounded annually](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-ram-borrowed-an-education-loan-of-rs-12000-for-his-son-for-2-years-at-12-5-per-annum-find-the-amount-payable-by-ram-at-the-end-of-2-years-if-the-interest-is-compounded-annually/) - Ram borrowed an education loan of Rs. 12,000 for his son for 2 years at 12.5% per annum. Find the amount payable by Ram at the end of 2 years if the interest is compounded annually - [Comparing Quantity - Calculate the amount and the compound interest on Rs. 2000 at 5% per annum for 3 years.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-calculate-the-amount-and-the-compound-interest-on-rs-2000-at-5-per-annum-for-3-years/) - Calculate the amount and the compound interest on Rs. 2000 at 5% per annum for 3 years. - [Comparing Quantity - A shopkeeper bought two items at 450 each. He sold one at loss of 10% . At what price should he sell the other as to gain 20% on the whole transaction.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-shopkeeper-bought-two-items-at-450-each-he-sold-one-at-loss-of-10-at-what-price-should-he-sell-the-other-as-to-gain-20-on-the-whole-transaction/) - A shopkeeper bought two items at 450 each. He sold one at loss of 10% . At what price should he sell the other as to gain 20% on the whole transaction. - [Comparing Quantity - Sania took a loan of Rs 16,000 against her insurance policy at the rate of 12.5% per annum compounded annually. Find the compound interest payable by her after 3 years.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-sania-took-a-loan-of-rs-16000-against-her-insurance-policy-at-the-rate-of-12-5-per-annum-compounded-annually-find-the-compound-interest-payable-by-her-after-3-years/) - Sania took a loan of Rs 16,000 against her insurance policy at the rate of 12.5% per annum compounded annually. Find the compound interest payable by her after 3 years. - [Comparing Quantity - Abha bought two calculators for Rs. 900/- she sold one at a profit of Rs 20% and the other at a loss of 20%. If the SP of both calculators was the same then find the CP of each calculator.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-abha-bought-two-calculators-for-rs-900-she-sold-one-at-a-profit-of-rs-20-and-the-other-at-a-loss-of-20-if-the-sp-of-both-calculators-was-the-same-then-find-the-cp-of-each-calc/) - Abha bought two calculators for Rs. 900/- she sold one at a profit of Rs 20% and the other at a loss of 20%. If the SP of both calculators was the same then find the CP of each calculator. - [Comparing Quantity - The present population of a town is 2,85,000. If the growth rate of the population is 5% per annum then what will be the population of the town after 5 years](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-the-present-population-of-a-town-is-285000-if-the-growth-rate-of-the-population-is-5-per-annum-then-what-will-be-the-population-of-the-town-after-5-years/) - The present population of a town is 2,85,000. If the growth rate of the population is 5% per annum then what will be the population of the town after 5 years - [Comparing Quantity - A certain sum amount to Rs. 5,832/- in 2 years at 8% if the interest is compounded annually. Find the sum](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-certain-sum-amount-to-rs-5832-in-2-years-at-8-if-the-interest-is-compounded-annually-find-the-sum/) - A certain sum amount to Rs. 5,832/- in 2 years at 8% if the interest is compounded annually. Find the sum - [Comparing Quantity - The difference between compound interest and simple interest at 5% per annum in 2 years is Rs. 30. Find the sum](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-the-difference-between-compound-interest-and-simple-interest-at-5-per-annum-in-2-years-is-rs-30-find-the-sum/) - The difference between compound interest and simple interest at 5% per annum in 2 years is Rs. 30. Find the sum - [Comparing Quantity - Sultan lent Rs. 16,000 to his friend for 3 years at 2.5% per annum. What amount will Sultan get after 3 years if the interest is to be compounded annually.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-sultan-lent-rs-16000-to-his-friend-for-3-years-at-2-5-per-annum-what-amount-will-sultan-get-after-3-years-if-the-interest-is-to-be-compounded-annually/) - Sultan lent Rs. 16,000 to his friend for 3 years at 2.5% per annum. What amount will Sultan get after 3 years if the interest is to be compounded annually. - [Comparing Quantity - Calculate the compound interest on Rs 1600 for 3 years at 5% per annum when interest is compounded annually](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-calculate-the-compound-interest-on-rs-1600-for-3-years-at-5-per-annum-when-interest-is-compounded-annually/) - Calculate the compound interest on Rs 1600 for 3 years at 5% per annum when interest is compounded annually - [Comparing Quantity - A factory increases the production of its machine parts from 80,000 to 92,610 in 3 years. Find the rate of growth.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-factory-increases-the-production-of-its-machine-parts-from-80000-to-92610-in-3-years-find-the-rate-of-growth/) - A factory increases the production of its machine parts from 80,000 to 92,610 in 3 years. Find the rate of growth. - [Comparing Quantity - Kavita borrowed Rs. 80,000/- from the bank at the rate of 10% per annum. Find the amount payable by her after 1 and 1/2 years if the interest is being compounded half yearly](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-kavita-borrowed-rs-80000-from-the-bank-at-the-rate-of-10-per-annum-find-the-amount-payable-by-her-after-1-and-1-2-years-if-the-interest-is-being-compounded-half-yearly/) - Kavita borrowed Rs. 80,000/- from the bank at the rate of 10% per annum. Find the amount payable by her after 1 and 1/2 years if the interest is being compounded half yearly - [Comparing Quantity - Find the difference between SI and CI on Rs 15,625 at 12% per annum for 3 years](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-find-the-difference-between-si-and-ci-on-rs-15625-at-12-per-annum-for-3-years/) - Find the difference between SI and CI on Rs 15,625 at 12% per annum for 3 years - [Comparing Quantity - A person borrows a sum of rupees 64,000 from a bank at the rate of 2.5% per annum compounded annually . find the amount and CI payable after 3 years](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-person-borrows-a-sum-of-rupees-64000-from-a-bank-at-the-rate-of-2-5-per-annum-compounded-annually-find-the-amount-and-ci-payable-after-3-years/) - A person borrows a sum of rupees 64,000 from a bank at the rate of 2.5% per annum compounded annually . find the amount and CI payable after 3 years - [Comparing Quantity - A machine costs Rs. 36,000. Its value depreciates at the rate of 10% during the first year and then increases at the rate of 20% during the second year. What will be the value of the machine after 2 years.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-machine-costs-rs-36000-its-value-depreciates-at-the-rate-of-10-during-the-first-year-and-then-increases-at-the-rate-of-20-during-the-second-year-what-will-be-the-value-of-th/) - A machine costs Rs. 36,000. Its value depreciates at the rate of 10% during the first year and then increases at the rate of 20% during the second year. What will be the value of the machine after 2 years. - [Comparing Quantity - The SI on a sum of money for 3 years at 12 and 1/2% per annum is Rs 1500. What will be the CI on the sum at the same rate and for the same period.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-the-si-on-a-sum-of-money-for-3-years-at-12-and-1-2-per-annum-is-rs-1500-what-will-be-the-ci-on-the-sum-at-the-same-rate-and-for-the-same-period/) - The SI on a sum of money for 3 years at 12 and 1/2% per annum is Rs 1500. What will be the CI on the sum at the same rate and for the same period. - [Comparing Quantity - How much would a sum of Rs. 20,000/- amount to at 12% in 9 months if the interest is being compounded quarterly](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-how-much-would-a-sum-of-rs-20000-amount-to-at-12-in-9-months-if-the-interest-is-being-compounded-quarterly/) - How much would a sum of Rs. 20,000/- amount to at 12% in 9 months if the interest is being compounded quarterly - [Comparing Quantity - In how much time will a sum of Rs. 1,600/- amount to Rs. 1,852.20 at 5% per annum if the interest is compounded annually?](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-in-how-much-time-will-a-sum-of-rs-1600-amount-to-rs-1852-20-at-5-per-annum-if-the-interest-is-compounded-annually/) - In how much time will a sum of Rs. 1,600/- amount to Rs. 1,852.20 at 5% per annum if the interest is compounded annually? - [Comparing Quantity - The value of an old brass vase depreciates at the rate 10% per annum. If its present value is Rs. 5,000, find the time after which its value will be reduced to Rs 3,645](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-the-value-of-an-old-brass-vase-depreciates-at-the-rate-10-per-annum-if-its-present-value-is-rs-5000-find-the-time-after-which-its-value-will-be-reduced-to-rs-3645/) - The value of an old brass vase depreciates at the rate 10% per annum. If its present value is Rs. 5,000, find the time after which its value will be reduced to Rs 3,645 - [Comparing Quantity - What sum will amount to Rs. 16,500/- at 5% per annum for 2 years if the interest is compounded annually](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-what-sum-will-amount-to-rs-16500-at-5-per-annum-for-2-years-if-the-interest-is-compounded-annually/) - What sum will amount to Rs. 16,500/- at 5% per annum for 2 years if the interest is compounded annually - [Comparing Quantity - At what rate will a sum of Rs 3,200 produce an interest of Rs. 672/- in 2 years if compounded annually](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-at-what-rate-will-a-sum-of-rs-3200-produce-an-interest-of-rs-672-in-2-years-if-compounded-annually/) - At what rate will a sum of Rs 3,200 produce an interest of Rs. 672/- in 2 years if compounded annually - [Comparing Quantity - A sum of money amounts to Rs 1,69,000 when invested for two years at the rate of 4% per annum compounded annually. Find the original sum of money](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-sum-of-money-amounts-to-rs-169000-when-invested-for-two-years-at-the-rate-of-4-per-annum-compounded-annually-find-the-original-sum-of-money/) - A sum of money amounts to Rs 1,69,000 when invested for two years at the rate of 4% per annum compounded annually. Find the original sum of money - [Comparing Quantity - At what rate will Rs 1000 amount to Rs 1331 in 3 years if compounded annually](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-at-what-rate-will-rs-1000-amount-to-rs-1331-in-3-years-if-compounded-annually/) - At what rate will Rs 1000 amount to Rs 1331 in 3 years if compounded annually - [Comparing Quantity - The population of a city is growing every year at 8%. If the present population is 2,62,236 then how much was the population two years ago](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-the-population-of-a-city-is-growing-every-year-at-8-if-the-present-population-is-262236-then-how-much-was-the-population-two-years-ago/) - The population of a city is growing every year at 8%. If the present population is 2,62,236 then how much was the population two years ago - [Comparing Quantity - Calculate the amount and CI on Rs 4000 at 2.5% per annum compounded annually for 3 years.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-calculate-the-amount-and-ci-on-rs-4000-at-2-5-per-annum-compounded-annually-for-3-years/) - Calculate the amount and CI on Rs 4000 at 2.5% per annum compounded annually for 3 years. - [Comparing Quantity - A sum of Rs 64,000 produces an interest of Rs 4,921 when compounded annually for 3 years. Find the rate of interest](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-sum-of-rs-64000-produces-an-interest-of-rs-4921-when-compounded-annually-for-3-years-find-the-rate-of-interest/) - A sum of Rs 64,000 produces an interest of Rs 4,921 when compounded annually for 3 years. Find the rate of interest - [Comparing Quantity - The population of a town was 75,000 three years ago. If the successive increase in the growth percentage was 5%, 4% and 2% respectively. Find the population at the end of three years.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-the-population-of-a-town-was-75000-three-years-ago-if-the-successive-increase-in-the-growth-percentage-was-5-4-and-2-respectively-find-the-population-at-the-end-of-three-years/) - The population of a town was 75,000 three years ago. If the successive increase in the growth percentage was 5%, 4% and 2% respectively. Find the population at the end of three years. - [Comparing Quantity - In how many years will a sum of Rs. 4000 amount to Rs. 5290 at 15% per annum if the interest is compounded annually](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-in-how-many-years-will-a-sum-of-rs-4000-amount-to-rs-5290-at-15-per-annum-if-the-interest-is-compounded-annually/) - In how many years will a sum of Rs. 4000 amount to Rs. 5290 at 15% per annum if the interest is compounded annually - [Comparing Quantity - The value of a car depreciates every year at the rate of 8% per annum. What will be the value of the car after 3 years if its current value is Rs. 1,20,000.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-the-value-of-a-car-depreciates-every-year-at-the-rate-of-8-per-annum-what-will-be-the-value-of-the-car-after-3-years-if-its-current-value-is-rs-120000/) - The value of a car depreciates every year at the rate of 8% per annum. What will be the value of the car after 3 years if its current value is Rs. 1,20,000. - [Comparing Quantity - A sum of Rs. 25,000 was lent at 10% per annum for 6 months. Find the amount if the interest was compounded (a) half-yearly and (b) quarterly](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-a-sum-of-rs-25000-was-lent-at-10-per-annum-for-6-months-find-the-amount-if-the-interest-was-compounded-a-half-yearly-and-b-quarterly/) - A sum of Rs. 25,000 was lent at 10% per annum for 6 months. Find the amount if the interest was compounded (a) half-yearly and (b) quarterly - [Comparing Quantity - Calculate the CI on Rs. 28,000 at 12% per annum compounded annually for 3 years](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-calculate-the-ci-on-rs-28000-at-12-per-annum-compounded-annually-for-3-years/) - Calculate the CI on Rs. 28,000 at 12% per annum compounded annually for 3 years - [Comparing Quantity - Rahul gave a loan of Rs 12,288/- to Aryan at the rate of 12.5% per annum. Calculate the amount that Aryan has to pay to Rahul after 1 and 1/2 years if the interest was compounded half yearly.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-rahul-gave-a-loan-of-rs-12288-to-aryan-at-the-rate-of-12-5-per-annum-calculate-the-amount-that-aryan-has-to-pay-to-rahul-after-1-and-1-2-years-if-the-interest-was-compounded-h/) - Rahul gave a loan of Rs 12,288/- to Aryan at the rate of 12.5% per annum. Calculate the amount that Aryan has to pay to Rahul after 1 and 1/2 years if the interest was compounded half yearly. - [Comparing Quantity - The cost of a washing machine is Rs. 10,000. If its cost reduces to Rs. 7,290 in 3 years, then find the rate of depreciation.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-the-cost-of-a-washing-machine-is-rs-10000-if-its-cost-reduces-to-rs-7290-in-3-years-then-find-the-rate-of-depreciation/) - The cost of a washing machine is Rs. 10,000. If its cost reduces to Rs. 7,290 in 3 years, then find the rate of depreciation. - [Comparing Quantity - Find the CI on Rs 8,75,000 compounded annually if the rate of interest is 2%, 4% and 5% respectively for 3 successive years.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantity-find-the-ci-on-rs-875000-compounded-annually-if-the-rate-of-interest-is-2-4-and-5-respectively-for-3-successive-years/) - Find the CI on Rs 8,75,000 compounded annually if the rate of interest is 2%, 4% and 5% respectively for 3 successive years. - [Comparing Quantities - Calculate the CI on Rs 48,000/- for 1 year at 8% per annum when compounded half yearly.](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/comparing-quantities-calculate-the-ci-on-rs-48000-for-1-year-at-8-per-annum-when-compounded-half-yearly/) - Calculate the CI on Rs 48,000/- for 1 year at 8% per annum when compounded half yearly. - [Understanding Quadrilaterals - Find the measure of four angles](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/understanding-quadrilaterals-find-the-measure-of-four-angles/) - [Understanding Quadrilaterals - Fourth Angle Measure](https://mbsclasses.com/courses/free-class-8-maths-videos-learn-and-master-concepts-easily/lessons/understanding-quadrilaterals-fourth-angle-measure/) - [Lesson No 1](https://mbsclasses.com/courses/10th-class-maths-cbse/lessons/lesson-no-1/) - Water is flowing at the rate of 2.52kmhr through a cylindrical pipe into a cylindrical tank, the radius of whose base is 40 cm. If the increase in the level of water in the tank, in half an hour is 3.15 m, find the internal diameter of the pipe Water in a canal, 6 m wide ## Quizzes - [Elements of Success: Chemistry Assignment](https://mbsclasses.com/courses/new-course-2/quizzes/elements-of-success-chemistry-assignment/) - Test your reactions! Dive into this assignment to challenge your understanding of chemical concepts, formulas, and equations. Let's see your knowledge bond together perfectly. - [Chemistry in Colors: Identify the Substances Quiz](https://mbsclasses.com/courses/new-course-2/quizzes/chemistry-in-colors-identify-the-substances-quiz/) - This quiz is designed to help students learn and revise the characteristic colors of different chemical substances. It includes questions based on observation, identification, and basic properties of compounds and elements. The activity will improve understanding of how color is an important physical property used in chemistry to recognize and distinguish substances. ## Categories - [Uncategorized](https://mbsclasses.com/category/uncategorized/) - [Science - New Tech](https://mbsclasses.com/category/science-new-tech/) - [Student Blog](https://mbsclasses.com/category/student-blog/) ## Product categories - [Uncategorized](https://mbsclasses.com/product-category/uncategorized/) ## Course Categories - [class 9](https://mbsclasses.com/course-category/class-9/?tutor-course-filter-category=23) - [Class 10 Free Video](https://mbsclasses.com/course-category/class-10-free-video/?tutor-course-filter-category=25) - [Vedic Mathematics](https://mbsclasses.com/course-category/vedic-mathematics/?tutor-course-filter-category=26) - [Class 8](https://mbsclasses.com/course-category/class-8/?tutor-course-filter-category=40)