What a Math

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




Similar Math Riddles

A rubber ball keeps on bouncing back to 2/3 of the height from which it is dropped. Can you calculate the fraction of its original height that the ball will bounce after it is dropped and it has bounced four times without any hindrance ?

Asked by Neha on 16 Sep 2024


John went to buy some expensive, foreign chocolates. He only had Rs 100 with him. When he reached the shop, he got out and know that on those chocolates, there was a 15% import duty and 5% VAT.

How much worth chocolate should he buy so that he can accommodate it in Rs 100?

Asked by Neha on 25 Oct 2024

A Shopkeeper sold a few chickens to four different customers on a particular day. It was such that each customer purchased half of the remaining chickens and half the chicken more.

Can you find out how many chicken were sold by the shopkeeper on that day if we tell you that the fourth customer bought a single chicken ?

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James ordered a fishing rod, priced at $3.56. Unfortunately, James is an Eskimo who lives in a very remote part of Greenland and the import rules forbid any package longer than 4 feet to be imported. The fishing rod was 4 feet and 1 inch, just a little too long, so how can the fishing rod be mailed to James without breaking the rules? Ideally James would like the fishing rod to arrive in one piece!

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How many triangles are there in the picture below?

Triangle Count Riddle

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A car meter reading shows 72927 miles a palindromic number.
what is the minimum number of miles you would need to travel to see another palindromic number on the car meter reading?

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Replace the question mark with the correct number in below Picture:

Replace the Number

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Find the value of "?" in the ball picture Riddle below:

Missing Ball Sequence

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Can you find out the smallest number that can be conveyed as the sum of three squares in three unique ways?

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Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

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Crossword puzzles

In the 1920s, people feared that crossword puzzles would contribute to illiteracy.