Problems and Solutions of ISI BStat and BMath Entrance 2020 of Indian Statistical Institute.
Problems and Solutions of ISI BStat and BMath Entrance 2020 of Indian Statistical Institute.
Let's learn how to calculate the geometric mean. This is a concept video useful for Mathematics Olympiad and ISI and CMI Entrance. Watch and Learn: Read and Learn: What is the Geometric mean of two numbers a and b & how to calculate it? Suppose a and b are positive numbers then their geometric mean […]
We are really happy with the performance of our students and thus, we have initiated to name the Toppers of the month in Cheenta. The names of the toppers will be updated every month to keep the healthy competition alive in Cheenta. These toppers are named in this leader board according to their performance in […]
This is another blog of the Cheenta Probability Series. Let's give a formal definition of statistical regularity to bring some seriousness into account. **10 min read** “The Law of Statistical Regularity formulated in the mathematical theory of probability lays down that a moderately large number of items chosen at random from a very large group […]
This is a very beautiful sample problem from ISI MStat PSB 2012 Problem 5 based on the Application of Central Limit Theorem.
Try this TOMATO Objective Problem from I.S.I. B.Stat Entrance based on Sum of divisors and Integers. You may use sequential hints to solve the problem.
Try this TOMATO problem from I.S.I. B.Stat Entrance Objective Problem based on Divisibility and Integers. You may use sequential hints to solve the problem.
This concept of independence, conditional probability and information contained always fascinated me. I have thus shared some thoughts upon this.
Try this problem from I.S.I. B.Stat Entrance Objective Problem from TOMATO based on Sets and Probability. You may use sequential hints to solve the problem.
In 2023, 23 Cheenta students (20 current students and 3 ex-students) qualified in IOQM 2023. This is a result of a lot of hard work over several months. Most of these kids regularly attended the five-days-a-week problem solving sessions apart from concept class + homework class + doubt clearing class.
Cheenta is offering a 36-hour program on AMC 10 & 12. In this short review course, we will cover concepts from Number Theory, Geometry, Algebra, and Combinatorics. This course is problem-driven in nature, in the sense concepts will be introduced and taught using relevant problems. Schedule The program starts on September 9th. The online live […]
Answer Keys (Unofficial) 5) 10 14) 40 20) 43 23) 36 26) 19 27) 91 28) 67 29) 95 30) 18 Problem Set
In this post we are adding notes for IOQM, RMO and similar math olympiads. These are derived from Cheenta's Problem solving classes and Math Olympiad Training Program. These notes cover topics from Number Theorem, Geometry, Algebra and Geometry. Revisit this page for more notes.
4 Cheenta students, Parth Vartak, Abhinav Khetan, Piyush Jha and Mann Shah cracked INMO. It is the hardest Math Olympiad in India. They qualified for IMO Training Camp. In this video we discuss some of the tools used in Cheenta Math Olympiad program and why it is so successful. Particularly 2022-23 has been a truly […]
Try this beautiful Combination Problem based on Non-negative integer solutions from PRMO 2016 Problem 4. You may use sequential hints to solve it.
Try this beautiful Set theory Problem based on Set theory from PRMO 2016. You may use sequential hints to solve it.
Try this beautiful Problem based on Mathematical Imagination from Math Kangaroo (Ecolier) 2010 Problem 16. You may use sequential hints to solve it.
Try this beautiful Problem based on Ordering of fraction from AMC 8 2019 Problem 3. You may use sequential hints to solve it.
Try this beautiful Problem based on Number Counting from AMC 8 2019 Problem 1. You may use sequential hints to solve it.
The Breakthrough Junior Challenge is a global competition for students aged 13–18 to create short, creative videos explaining complex science or math concepts.
Problem 1 Gravitational collapse is the contraction of an astronomical object under its own gravity. This draws the matter inwards towards the centre of gravity. A neutron star is an example of the collapsed core of a giant star. A certain neutron star of radius 10 km is of mass \(1.5 M_{\odot}\). The acceleration due […]
Problem 1 Which one of the following statements is INCORRECT? (A) If the net force on a body is zero, its velocity is constant or zero(B) If the net force on a body is zero, its acceleration is constant and(C) If the velocity of a body is constant, its acceleration is zero(D) A body may […]
সমাকলন অথবা ইন্টিগ্রেশনের মানেটুকু বুঝলে আই-এস-আই প্রবেশিকার এই অঙ্কটা করা যাবে। ISI Entrance 2025-এর অঙ্ক নিয়ে আলোচনা।
UGA 1. (A) 2. (C) 3. (B) 4. (B) 5. (A) 6. (D) 7. (D) 8. (D) 9. (B) 10. (B) 11. (C) 12. (D) 13. (C) 14. (D) 15. (B) 16. (D) 17. (D) 18. (C) 19. (C) 20. (A) 21. (A) 22. (C) 23. (B) 24. (A) 25. (C) 26. (B) 27. (A) […]
Problem 1 Two blocks A and B of masses 1 kg and 4 kg respectively are moving with equal kinetic energies. Read the following statements \(S_1\) and \(S_2\)Statement \(S_1\) : Ratio of speed of the block A to that of B is (1: 2)Statement \(S_2\) : Ratio of magnitude of linear momentum of (A) to […]
Celebrate the success of Cheenta students in the Stanford Math Tournament. The Unified Vectors team achieved Top 20 in the Team Round.
Arjun Gupta’s journey from IOQM and RMO to winning Gold at the International Mathematical Olympiad (IMO) reflects his dedication. Arjun is also a Cambridge admit of 2025
In 2025, five exceptional students from Cheenta earned spots at Oxford and Cambridge—two of the world’s most prestigious universities. Guided by Cheenta’s acclaimed Path to Ivy League Program, these young achievers exemplify what’s possible with the right mentorship and preparation.
Souradip Das, a talented student at Cheenta Academy, has excelled in mathematics, securing top ranks in IOQM, RMO, and AMC 10-12. and is helping students from rural Sundarbans discover their passion for mathematics.