Try this beautiful problem from AMC 8. It involves the concept of divisibility. We provide sequential hints so that you can try the problem.
Try this beautiful problem from AMC 8. It involves the concept of divisibility. We provide sequential hints so that you can try the problem.
Parity is an important tool in Mathematics. Try this beautiful application of this idea. We present a video and some additional problems.
AMC 10A, 2022, Problem 25 Let $R,S$ and $T$,be squares that have vertices at lattice points (i.e., points whose coordinates are both integers) in the coordinate plane, together with their interiors. The bottom edge of each square is on the $x$-axis.The left edge of $R$ and the right edge of $S$ are on the $y$-axis and […]
Try this beautiful problem from AMC 8. It involves the concept of a variable, binary operation and ratio-proportion. We provide sequential hints so that you can try the problem.
Try this beautiful problem from AMC 10A. It involves arrangment of numbers out of which some elements are similar. We provide sequential hints so that you can try the problem.
Try this beautiful problem of probability is based upon tossing the coin and finding probability from AMC 10B 2019. You may use sequential hints to help you solve the problem.
Try this beautiful problem from AMC 8. It involves the concept of divisibility. We provide sequential hints so that you can try the problem.
Euclidean algorithm is used to find GCD (greatest common divisor). Use tutorial video and practise problems to master this tool.
Try these AMC 8 Number Theory Questions and check your knowledge! AMC 8, 2025, Problem 2 The table below shows the ancient Egyptian hieroglyphs that were used to represent different numbers. For example, the number 32 was represented by $\cap \cap \cap|\mid$. What number was represented by the following combination of hieroglyphs? (A) 1,423(B) 10,423(C) […]
Try these AMC 8 Combinatorics Questions and check your knowledge! AMC 8, 2025, Problem 5 Betty drives a truck to deliver packages in a neighborhood whose street map is shown below. Betty starts at the factory (labeled $F$ ) and drives to location $A$, then $B$, then $C$, before returning to $F$. What is the […]
This is a very simple and beautiful sample problem from ISI MStat PSB 2013 Problem 7. It is mainly based on simple hypothesis testing of normal variables where it is just modified with a bernoulli random variable. Try it!
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 […]
Try this beautiful problem from the American Invitational Mathematics Examination I, AIME I, 1999 based on the number of points and planes.
This is a very beautiful sample problem from ISI MStat PSB 2004 Problem 4 based on finding probability using a uniform distribution. Let's give it a try !!
This is a very beautiful sample problem from ISI MStat PSB 2005 Problem 2 based on finding probability using binomial distribution. Let's give it a try !!
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 simple and beautiful sample problem from ISI MStat PSB 2013 Problem 9. It is mainly based on geometric distribution and its expectation . Try it!
Try this beautiful problem number 2 from the American Invitational Mathematics Examination I, AIME I, 2012 based on Arithmetic Sequence Problem.
Try this beautiful Problem on Graph Coordinates from co-ordinate geometry from AMC 10A, 2015. You may use sequential hints to solve the problem.
Try this beautiful problem from the Pre-RMO, 2018 based on Digits of number. You may use sequential hints to solve the problem.