# Infinity Hub > Mathematics ## Pages - [Exercise Set 2.2](https://infinityhub.icu/exercise-set-2-2/) - [Exercise Set 2.1](https://infinityhub.icu/exercise-set-2-1/) - [End-Of-Chapter Exercise 8 Class 9](https://infinityhub.icu/end-of-chapter-exercise-8-class-9/): Class 9 Mathematics Ganita Manjari Part 1 NCERT SolutionsChapter-8: Predicting What Comes Next: Exploring Sequences and Progressions End-of-Chapter Excersice 1. Find the term of an AP whose term is 38 and term is 73.Solution:Given     ⇒       …….. (1)Also,      ⇒       …….. (2)Subtract (1) from (2)                                        Put in (1)                        Now, term:                        2. Determine […] - [Exercise Set 8.3](https://infinityhub.icu/exercise-set-8-3/): Class 9 Mathematics Ganita Manjari Part 1 NCERT SolutionsChapter-8: Predicting What Comes Next: Exploring Sequences and Progressions Exercise Set 8.3 1. Find the term of a GP with common ratio 2, whose 8th term is 192.Solution:Common ratio, term: term of a GP:     Put and                 term:                                    2. Find the and terms of the GP: 5, 25, 125, … .Solution:Given GP: 5, 25, 125, …First term, Common ratio, term:      Put                    […] - [Exercise Set 8.2](https://infinityhub.icu/exercise-set-8-2/): Class 9 Mathematics Ganita Manjari Part 1 NCERT SolutionsChapter-8: Predicting What Comes Next: Exploring Sequences and Progressions Exercise Set 8.2 1. Find the and  terms of the AP: 3, 8, 13, 18, ….Solution:Given AP : 3, 8, 13, 18…First term, Common difference, The term of an AP is:        term                                                 term                                                 […] - [Exercise Set 8.1](https://infinityhub.icu/exercise-set-8-1/): Class 9 Mathematics Ganita Manjari Part 1 NCERT SolutionsChapter-8: Predicting What Comes Next: Exploring Sequences and Progressions Exercise Set 8.1 1. Find the first five terms of the sequence in which the term is given by (i)  (ii) (iii) for . Solution:(i) Put                          So, first five terms are -1, 2, 5, 8, 11 (ii) Put                          So, first five terms are -3, -8, -13, -18, -23 (iii) Put                             […] - [End-Of-Chapter Exercise 7 Class 9](https://infinityhub.icu/end-of-chapter-exercise-7-class-9/): Class 9 Mathematics Ganita Manjari Part 1 NCERT SolutionsChapter-7: The Mathematics of Maybe: Introduction to Probability End-Of-Chapter Exercise 1. Fill in the blanks.(i) The probability of an impossible event is ____.(ii) The set of all possible outcomes of a random experiment is called the __________.(iii) The probability of an event that is certain to happen is _______.(iv) Tossing a fair coin has a probability of ______ for getting heads. Solutions:(i) The probability of an impossible event is 0.(ii) The set of all possible outcomes of a random experiment is called the sample space.(iii) The probability of an event that is certain […] - [Exercise Set 7.4](https://infinityhub.icu/courses/class-ix-mathematics/exercise-set-7-4/): Class 9 Mathematics Ganita Manjari Part 1 NCERT SolutionsChapter-7: The Mathematics of Maybe: Introduction to Probability Exercise Set 7.4 1. There are two fruit baskets A and B. Basket A has one apple and two oranges. Basket B has one banana and one mango. You randomly pick one fruit from each basket.(i) Draw a tree diagram showing all possible pairs of fruits.(ii) List the sample space.(iii) What is the probability of picking one apple and one banana? Solution:Basket A contains: Apple, Orange1, Orange2Basket B contains: Banana, Mango (i) Tree Diagram: (ii) Sample Space Since the two oranges are identical, the sample […] - [Exercise Set 7.3](https://infinityhub.icu/courses/class-ix-mathematics/exercise-set-7-3/): Class 9 Mathematics Ganita Manjari Part 1 NCERT SolutionsChapter-7: The Mathematics of Maybe: Introduction to Probability Exercise Set 7.3 1. When a single 6-sided die is rolled, what is the total number of possible outcomes in the sample space? Solution:When a single 6-sided die is rolled, the possible outcomes are: 1, 2, 3, 4, 5, 6So, the sample space, S= {1, 2, 3, 4, 5, 6}Total number of possible outcomes, n(S) = 6 2. For the following experiments write down the sample space S.(i) Rolling a die and tossing a coin together.(ii) Choosing a random integer between – 5 and + […] - [Exercise Set 7.2](https://infinityhub.icu/courses/class-ix-mathematics/exercise-set-7-2/): Class 9 Mathematics Ganita Manjari Part 1 NCERT SolutionsChapter-7: The Mathematics of Maybe: Introduction to Probability Exercise Set 7.2 1. A teacher mixes a large bag of sweets of different colours and randomly selects a sample of 30 sweets. She counts the number of sweets of each colour:10 red sweets | 8 green sweets | 7 yellow sweets | 5 blue sweets(i) Calculate the probability that a randomly picked sweet from the sample is green.(ii) If there are 600 sweets in total in the large bag, estimate how many are likely to be yellow, based on the sample results. Solution:(i) Number […] - [Exercise Set 7.1](https://infinityhub.icu/courses/class-ix-mathematics/exercise-set-7-1/): Class 9 Mathematics Ganita Manjari Part 1 NCERT SolutionsChapter-7: The Mathematics of Maybe: Introduction to Probability Exercise Set 7.1 1. Rank the following events on a scale from 0 (Impossible) to 1 (Certain). Label each event: Impossible, less likely, equally likely (even chance), more likely, certain. Give reasons why you gave each event its ranking.(i) The next Monday will come after Sunday.(ii) It will snow in Mumbai in July.(iii) An elephant will walk through your classroom today.(iv) You will greet at least one friend at school tomorrowSolution:(i) Ranking: 1Label: CertainReason: The days of the week always follow the same order. Sunday […] - [Class IX Mathematics](https://infinityhub.icu/courses/class-ix-mathematics/): Class 9 Mathematics Ganita Manjari Part 1 NCERT Solutions 1. Orienting Yourself: The Use of Coordinates Updated Soon 2. Introduction to Linear Polynomials Updated soon 3. The World Of Numbers Updated soon 4. Exploring Algebraic Identities Updated soon 5. I’m Up and Down, and Round and Round Updated soon 6. Measuring Space: Perimeter and Area EXERCISE SET 6.1 EXERCISE SET 6.2 EXERCISE SET 6.3 END-OF-CHAPTER EXERCISE 7. The Mathematics of Maybe: Introduction to Probability Exercise Set 7.1 Exercise Set 7.2 Exercise Set 7.3 Exercise Set 7.4 End-Of-Chapter Exercise 8. Predicting What Comes Next: Exploring Sequences and Progressions Exercise Set 8.1Exercise Set […] - [About Us](https://infinityhub.icu/about-us/): Welcome to InfinityHub — where mathematics becomes clear, logical, and engaging. We don’t just solve questions; we uncover the concepts behind them. Whether you’re preparing for board exams, strengthening your fundamentals, or aiming for excellence in mathematics, InfinityHub helps you build true understanding and confidence.📐 What you’ll find here:• Clear explanations of secondary and senior secondary mathematics• Step-by-step NCERT Textbooks Solutions• Exam-oriented strategies and problem-solving techniques• Conceptual understanding beyond textbooks • Tips to improve logical and analytical thinkingMathematics is not about memorizing formulas—it’s about understanding ideas and applying them with confidence.Step into the hub, subscribe, and let’s unlock your infinite potential. - [Courses](https://infinityhub.icu/courses/): Our Courses Class VI Class VII Class VIII Class IX Class X Class XI Class XII - [Home](https://infinityhub.icu/): MASTERING MATHEMATICS Made Simple Made Powerful Helping Students from classes VI- XII build strong concepts and excel in school and and competitive exams Our Courses Class VI Class VII Class VIII Class IX Class X Class XI Class XII - [Privacy Policy](https://infinityhub.icu/privacy-policy/): Privacy Policy Last Updated: August 9, 2026 Welcome to infinityhub.icu . We respect your privacy and are committed to protecting any information you may provide while using our website. This Privacy Policy explains what information we collect, how we use it, and how we protect it when you visit or use our website. 1. About Our Website Our website provides free mathematics learning resources, including educational content, explanations, questions, solutions, worksheets, and other resources intended to support mathematics learning. 2. Information We Collect We may collect limited information when you use our website. Information you provide If you contact us through […] ## Optional - [Agent (MCP protocol)](websites-agents.hostinger.com/infinityhub.icu/mcp) [comment]: # (Generated by Hostinger Tools Plugin)