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February 16, 2021
Test of Mathematics Solution Subjective 107 - Perpendiculars from Center

This is a Test of Mathematics Solution Subjective 107 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Also visit: I.S.I. & C.M.I. Entrance Course of Cheenta Problem: If a, b and c […]

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February 16, 2021
Test of Mathematics Solution Subjective 90 - Graphing Inequality

This is a Test of Mathematics Solution Subjective 90 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Also visit: I.S.I. & C.M.I. Entrance Course of Cheenta Problem: : Draw the region of […]

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February 16, 2021
Test of Mathematics Solution Subjective 88 - Complex Numbers with a Property

This is a Test of Mathematics Solution Subjective 88 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Also visit: I.S.I. & C.M.I. Entrance Course of Cheenta Problem: A pair of complex numbers […]

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February 16, 2021
Test of Mathematics Solution Subjective 84 - Comparing Equations

This is a Test of Mathematics Solution Subjective 84 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Problem Show that there is exactly one value of \(x\) that satisfies the equation: \(2 […]

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February 16, 2021
Test of Mathematics Solution Subjective 83 - Two numbers adding up to 1

This is a Test of Mathematics Solution Subjective 83 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Problem If a and b are positive real numbers such that a + b = […]

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February 16, 2021
Test of Mathematics Solution Subjective 82 - Inequality on four positive real numbers

This is a Test of Mathematics Solution Subjective 82 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Also visit: I.S.I. & C.M.I. Entrance Course of Cheenta Problem Let a, b, c, d […]

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February 16, 2021
Test of Mathematics Solution Subjective 81 - Cyclic and Symmetric Simultaneous Equations

This is a Test of Mathematics Solution Subjective 81 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Also visit: I.S.I. & C.M.I. Entrance Course of Cheenta Problem Find all possible real numbers […]

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February 16, 2021
Test of Mathematics Solution Subjective 79 -Trigonometric Inequality

This is a Test of Mathematics Solution Subjective 79 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Also visit: I.S.I. & C.M.I. Entrance Course of Cheenta Problem Let $ {{\theta}_1}$, $ {{\theta}_2}$, […]

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February 16, 2021
Test of Mathematics Solution Subjective 78 -Absolute Value Inequality

This is a Test of Mathematics Solution Subjective 78 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Also visit: I.S.I. & C.M.I. Entrance Course of Cheenta Problem For real numbers $ {x}$, […]

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February 16, 2021
Test of Mathematics Solution Subjective 77

This is a Test of Mathematics Solution Subjective 77 (from ISI Entrance). The book, Test of Mathematics at 10+2 Level is Published by East West Press. This problem book is indispensable for the preparation of I.S.I. B.Stat and B.Math Entrance. Problem For $ {x > 0}$, show that $ {\displaystyle{\frac{x^n - 1}{x - 1}}{\ge}{n{x^{\frac{n - […]

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August 31, 2024
Screening Test – Bhaskara Contest(NMTC JUNIOR LEVEL—IX and X Grades)2024-2025

Question 01 If $x^2+x=1$, then the value of $\frac{x^7+34}{x+2}$ is equal to a) 7b) 1c) 13d) 17 Question 02 The angle between the hour hand and the minute hand of a clock at the time $9: 38 \mathrm{pm}$ is a) $60^{\circ}$b) $61^{\circ}$c) $59^{\circ}$d) $62^{\circ}$ Question 03 In the adjoining figure, $A O B$ is a […]

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August 31, 2024
Screening Test – Kaprekar Contest(NMTC SUB-JUNIOR LEVEL—VII and VIII Grades)2024-2025

Question 01 There is a 6-digit number in which the first and the fourth digit from the first are the same, the second and the fifth digit from the first are the same and the third and the sixth digit from the first are the same. Then the number is always a) A square numberb) […]

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August 10, 2024
Cheenta students featured in a Times Of India story on Mathematical Olympiads

Times of India Story features Cheenta students and India's growing prowess in mathematical Olympiads.

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July 20, 2024
Exploring Locus Problems in Math Olympiad Geometry

Learn about the concept of Locus problem in Geometry of Math Olympiad

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June 2, 2024
What is AMC 8 | How to prepare for AMC 8, 2023-24?

American Mathematics Competition 8 or AMC 8 is the first step toward International Math Olympiad in the United States (USAMO). Let's understand how to prepare for it.

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April 21, 2024
Singapore Math Olympiad Past Years Questions- Algebra (Senior)

Singapore Math Olympiad (Senior) Past Years Questions on the topic of Algebra.

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April 21, 2024
Singapore Math Olympiad Past Years Questions- Number Theory (Senior)

Singapore Math Olympiad (Senior) Past Years Questions on the topic of Number Theory.

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April 21, 2024
Singapore Math Olympiad Past Years Questions- Geometry (Senior)

Singapore Math Olympiad Past years Questions (Senior) on the topic of Geometry.

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April 21, 2024
Singapore Math Olympiad Past years Questions- Combinatorics (Senior)

Singapore Math Olympiad Senior Past Year Questions on the topic of Combinatorics.

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April 21, 2024
Singapore Math Olympiad Past Years Question - Number Theory (Junior)

Singapore Math Olympiad (Junior) on the topic of Number Theory.

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February 7, 2026
Sundarban and Kankinara Training – Week 10 Report (30th November 2025)

In Week 10, teachers strengthened their understanding of English grammar, learning Subject-Verb-Object and be-verbs while continuing tense practice. They also developed digital communication skills by practicing how to write clear and professional official emails.

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February 7, 2026
Sundarban and Kankinara Training – Week 9 Report (21st November 2025)

In Week 9, Sundarban teachers continued practicing English Tense and sentence structure, reviewed student exam copies, and learned how to use email for professional communication. The session blended grammar training with practical assessment and digital literacy.

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February 7, 2026
Sundarban Faculty Training – Week 8 Report (6th November 2025)

In Week 8 of the Sundarban Faculty Training, teachers learned to guide students in writing paragraphs on “Amar Sundarban” in Bengali and English. The session also introduced the basics of English Tense and encouraged the balanced use of digital tools to create meaningful, engaging classroom lessons.

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February 7, 2026
Sundarban Faculty Training – Week 7 Report (30th October 2025)

In Week 7 of the Sundarban Faculty Training, teachers strengthened their English grammar and revision skills through practical lessons based on ‘Amar Boi.’ They also revisited ChatGPT to create lesson ideas and discussed the responsible use of AI, blending traditional teaching with digital learning for more engaging classrooms.

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February 6, 2026
American Mathematics Competition 10A - 2020

Problem 1 What value of $\boldsymbol{x}$ satisfies $$x-\frac{3}{4}=\frac{5}{12}-\frac{1}{3} ?$$ (A) $-\frac{2}{3}$(B) $\frac{7}{36}$(C) $\frac{7}{12}$(D) $\frac{2}{3}$(E) $\frac{5}{6}$ Answer: (E) $\frac{5}{6}$ Problem 2 The numbers $3,5,7, a$ and $b$ have an average (arithmetic mean) of 15 . What is the average of $a$ and $b$ ?(A) 0(B) 15(C) 30(D) 45(E) 60 Answer: (C) 30 Problem 3 Assuming $a […]

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February 6, 2026
American Mathematics Competition 10A - 2019

Problem 1 (A) 0(B) 1(C) 2(D) 3(E) 4 Answer: (C) 2 Problem 2What is the hundreds digit of $(20!-15!)$ ?(A) 0(B) 1(C) 2(D) 4(E) 5 Answer: (A) 0 Problem 3Ana and Bonita were born on the same date in different years, $n$ years apart. Last year Ana was 5 times as old as Bonita. This […]

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February 4, 2026
American Mathematics Competition 10A - 2024

Problem 1What is the value of $9901 \cdot 101-99 \cdot 10101$ ?(A) 2(B) 20(C) 200(D) 202(E) 2020 Answer: (A) 2 Problem 2A model used to estimate the time it will take to hike to the top of the mountain on a trail is of the form $T=a L+b G$, where $a$ and $b$ are constants, […]

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February 4, 2026
AMERICAN MATHEMATICS COMPETITION 8 - 2020
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February 1, 2026
AMERICAN MATHEMATICS COMPETITION 10 A - 2021

Problem 1 What is the value of $\frac{(2112-2021)^{2}}{169}$ ?(A) 7(B) 21(C) 49(D) 64(E) 91 Answer: (C) 49 Problem 2 Menkara has a $4 \times 6$ index card. If she shortens the length of one side of this card by 1 inch, the card would have area 18 square inches. What would the area of the […]

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January 31, 2026
NOAI 2024 China

Explore the NOAI 2024 China – Basketball Shooting task. You’ll work with historical shooting data and build a small PyTorch MLP (using only court position features) to predict whether a shot is made, following strict layer and activation constraints.

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