What a Math

If 21x = 79x, what is the value of x?




Similar Riddles

Solve the mathematical equation in the picture below.

Math Equation Picture

Asked by Neha on 16 May 2023


Your job is to measure 45 minutes if you have only two cords and matches to light the cords.

1. The two cords are twisted from various materials, so their different segments can burn at different rates.
2. Each cord burns from end to end in exactly one hour.

Describe your way of measuring the 45 minutes.

Asked by Neha on 15 May 2024

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

Fun With Matchsticks

Asked by Neha on 13 Dec 2023


There are hundred red gems and hundred blue gems. The blue gems are priceless while the red gems equal wastage. You have two sacks one labeled Heads and the other Tails. You have to distribute the gems as you want in the two sacks. Then a coin will be flipped and you will be asked to pick up a gem randomly from the corresponding sacks.

How will you distribute the gems between the sacks so that the odds of picking a Blue gem are maximum?

Asked by Neha on 29 May 2023

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

Asked by Neha on 11 May 2023

You need to climb ten stairs. At every stair, you can either take one step up or you can jump two steps up.

In how many different ways you can climb 10 stairs?

Asked by Neha on 31 Jan 2025


Complete the table series riddle by finding the number that can replace "??".

Tabular Math for All

Asked by Neha on 25 Sep 2024

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

Asked by Neha on 17 Jul 2023

I am quite hot but become too cold if you remove the first two letters. What am I?

Asked by Neha on 24 May 2023


A man is looking at a photograph of someone. His friend asks who it is. The man replies, “Brothers and sisters, I have none. But that man’s father is my father’s son.” Who was in the photograph?

Asked by Neha on 04 Jul 2025

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Amazing Facts

Gamers

In 2011, people playing Foldit, an online puzzle game about protein folding, resolved the structure of an enzyme that causes an Aids-like disease in monkeys. Researchers had been working on the problem for 13 years. The gamers solved it in three weeks.