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February 15, 2021
Test of Mathematics Solution Subjective 17 - Odd Coefficients

This is a Test of Mathematics Solution (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 see: Cheenta I.S.I. & C.M.I. Entrance Course   Problem If the coefficients of a quadratic equation […]

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February 15, 2021
Test of Mathematics Solution Subjective 56 - Number of Four Digit Integers

This is a Test of Mathematics Solution Subjective 56 (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  Show that the number of […]

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February 15, 2021
Test of Mathematics Solution Subjective 42- Polynomial with Integer Coefficients

This is a Test of Mathematics Solution of Subjective 42 (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 & CMI Entrance Course of Cheenta Problem Let f(x) be a […]

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February 13, 2021
ISI B.Stat 2011 Objective Paper| Problems & Solutions

Here, you will find all the questions of ISI Entrance Paper 2011 from Indian Statistical Institute's B.Stat Entrance. You will also get the solutions soon of all the previous year problems. Group A Problem 1: The limit $$\lim _{x \rightarrow 0} \frac{1-\cos \left(\sin ^{2} \alpha x\right)}{x}$$ (A) equals $1$;(B) equals $\alpha$;(C) equals $0$ ;(D) does […]

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February 12, 2021
ISI B.Stat 2010 Objective Paper| problems & solutions

Here, you will find all the questions of ISI Entrance Paper 2010 from Indian Statistical Institute's B.Stat Entrance. You will also get the solutions soon of all the previous year problems. Problem 1: There are 8 balls numbered $1,2, \ldots, 8$ and 8 boxes numbered $1,2, \ldots, 8$. The number of ways one can put […]

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February 8, 2021
ISI B.Stat & B.Math 2015 Objective Paper| problems & solutions

Here, you will find all the questions of ISI Entrance Paper 2015 from Indian Statistical Institute's B.Stat Entrance. You will also get the solutions soon of all the previous year problems. Problem 1: Let $\mathbb{C}$ denote the set of complex numbers and $S=\{z \in \mathbb{C} \mid \bar{z}=z^{2}\},$ where $\bar{z}$ denotes the complex conjugate of $z […]

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February 8, 2021
Test of Mathematics Solution Subjective 46 - Number of Onto Functions

This is a Test of Mathematics Solution Subjective 46 (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 function \(f\) from set \(A\) into set […]

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February 8, 2021
ISI B.Stat, B.Math Paper 2016 Objective| Problems & Solutions

Here, you will find all the questions of ISI Entrance Paper 2016 from Indian Statistical Institute's B.Stat Entrance. You will also get the solutions soon of all the previous year problems. Problem 1: The largest integer $n$ for which $n+5$ divides $n^{5}+5$ is(A) 3115(B) 3120(C) 3125(D) 3130 . Problem 2: Let $p, q$ be primes […]

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February 7, 2021
ISI B.Stat 2009 Objective Paper| problems & solutions

Here, you will find all the questions of ISI Entrance Paper 2009 from Indian Statistical Institute's B.Stat Entrance. You will also get the solutions soon of all the previous year problems. Group A Problem 1: If $k$ times the sum of the first $n$ natural numbers is equal to the sum of the squares of […]

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February 7, 2021
ISI B.Stat 2008 Objective Paper| problems & solutions

Here, you will find all the questions of ISI Entrance Paper 2007 from Indian Statistical Institute's B.Stat Entrance. You will also get the solutions soon of all the previous year problems. Problem 1: Let $C$ be the circle $x^{2}+y^{2}+4 x+6 y+9=0$. The point $(-1,-2)$ is(A) inside $C$ but not the centre of $C$;(B) outside $C$;(C) […]

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November 2, 2023
2022 AMC 10A, Problem 20, Hints and Solution

Try hints and then solution from AMC 10A 2022, Problem 20.

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November 2, 2023
NMTC 2015 Stage II - KAPREKAR (Class 7, 8) - Problems and Solutions

NMTC Stage II Sub-Junior Level (Kaprekar) problems, solutions and discussions from the year 2015.

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November 2, 2023
NMTC 2015 Stage II - BHASKARA (Class 9, 10) - Problems and Solutions

NMTC Stage II Junior (Bhaskara) problems, solutions and discussions from the year 2015.

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November 2, 2023
NMTC 2017 Stage II - BHASKARA (Class 9, 10) - Problems and Solutions

NMTC Stage II Junior Level (BHASKARA) problems, solutions and discussions from the year 2017.

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November 2, 2023
NMTC 2017 Stage II - GAUSS (Class 5, 6) - Problems and Solutions

NMTC Stage II Primary Level (GAUSS) problems, solutions and discussions from the year 2017.

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November 2, 2023
NMTC 2018 Stage II - KAPREKAR (Class 7, 8) - Problems and Solutions

NMTC Stage II Sub-Junior Level (KAPREKAR) problems, solutions and discussions from the year 2018.

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November 2, 2023
NMTC 2018 Stage II - GAUSS (Class 5, 6) - Problems and Solutions

NMTC Stage II Primary Level (GAUSS) problems, solutions and discussions from the year 2018.

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November 2, 2023
NMTC 2018 Stage II - BHASKARA (Class 9, 10) - Problems and Solutions

NMTC Stage II Junior Level (BHASKARA) problems, solutions and discussions from the year 2018.

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November 2, 2023
NMTC 2019 Stage II - Kaprekar (Class 7, 8) - Problems and Solutions

NMTC Stage II Junior Level (KAPREKAR) problems, solutions and discussions from the year 2019.

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November 1, 2023
NMTC 2019 Stage II - BHASKARA (Class 9, 10) - Problems and Solutions

NMTC Stage II Junior Level (BHASKARA) problems, solutions and discussions from the year 2019.

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September 9, 2025
Mid-Project Presentation: The Alankrita Leadership Project

Cheenta students are supporting a sustainable jewelry brand from West Bengal through design, storytelling, and tech-driven solutions.

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September 8, 2025
IOQM 2025 Questions, Answer Key, Solutions

Here are the problems and solutions of IOQM (Indian Olympiad Qualifier in Mathematics) 2025

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August 24, 2025
NMTC - Screening Test – Ramanujan Contest 2025

Practice NMTC questions of Ramanujan 2025 and sharpen problem-solving skills and prepare for the National Mathematics Talent Contest.

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August 24, 2025
NMTC - Screening Test – KAPREKAR Contest - 2025

Practice NMTC questions of Kaprekar 2025 and sharpen problem-solving skills and prepare for the National Mathematics Talent Contest.

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August 24, 2025
BHASKARA Contest - NMTC - Screening Test – 2025

Here are the NMTC 2025 - Bhaskara Contest Questions and Solutions of the Screening Test, one of the best Mathematical Olympiads in India.

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August 24, 2025
NMTC - Screening Test – GAUSS Contest - 2025

Here is the NMTC 2025 - Gauss Contest Questions and Solutions of the Screening Test, one of the best Mathematical Olympiads in India.

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August 21, 2025
Mid-Project Presentation: AI-Powered Mobile App for Early Cataract Detection

Through initiative taken by Cheenta, participants lead projects that integrate creativity, team collaboration, and leadership

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August 16, 2025
An Advanced Mathematical Journey: The Structure of Operator Algebras

Learn C-algebras, Hilbert spaces, operator theory, and the Gelfand–Naimark theorems with Cheenta’s 8-week course by Dr. Tattwamasi Amrutam.

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August 7, 2025
Sharygin Geometry Olympiad 2025 - India

Problems and Solutions from Sharygin Geometry Olympiad 2025. Final round was held in Kolkata, India at Cheenta Academy.

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June 26, 2025
Cheenta Shines in Purple Comet Math Meet 2025

Cheenta students shine at the Purple Comet Math Meet 2025 organized by Titu Andreescu and Jonathan Kanewith top national and global ranks.

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