Sets and Venn diagrams |B.Math Entrance

Try this beautiful problem from B.Math Entrance Exam based on Sets and Venn diagrams. Sets and Venn diagrams – B.Math Entrance In a village of 1000 inhabitants, there are three newspapers P, Q,and R in circulation. Each of these papers is read by 500 persons....

I.S.I Entrance-2013 problem 2

Understand the problem For x ≥ 0 definef(x) =.Determine the set {y ∈ R : y = f(x), x ≥ 0}. Source of the problem I.S.I. (Indian Statistical Institute) B.Stat/B.Math Entrance Examination 2013. Subjective Problem no. 2. Topic Calculus , Function  Difficulty Level...

Number Theory – Working backward – C.M.I UG -2019

Understand the problem   If there exists a calculator with 12 buttons, 10 being the buttons for the digits and A and B being two buttons being processes where if n is displayed on the calculator if A is pressed it increases the displayed number by 1 and if B is...
A Proof from my Book

A Proof from my Book

This is proof from my book – my proof of my all-time favorite true result of nature – Pick’s Theorem. This is the simplest proof I have seen without using any high pieces of machinery like Euler number as used in The Proofs from the Book. Given a...
A Math Conversation – I

A Math Conversation – I

Inspired by the book of Precalculus written in a dialogue format by L.V.Tarasov, I also wanted to express myself in a similar fashion when I found that the process of teaching and sharing knowledge in an easy way is nothing but the output of a lucid conversation...