Ball Jumping

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 ?




Similar Math Riddles

Before the start of the car race, John and Jacob have the same amount of fuel in their car. With this fuel, John can drive for 4 hours while Jacob can drive five hours.
After a time they realize that the amount of fuel left in John's car is 1/4th of the fuel in Jacob's.

For how long they are racing?

Asked by Neha on 30 Jan 2026


Check out the number list below and find what number comes next in the sequence.

111 , 113 , 117 , 119 , 123 , 137 , ?

Asked by Neha on 30 Mar 2026

Can you find out the remainder when 3^300 is divided by 5?

Asked by Neha on 31 Oct 2023


We know that the number 7 is the prime followed by a cube. Which next number is also a prime followed by a cube?

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There once were seven dwarfs who were all brothers. They were all born two years apart. The youngest dwarf is seven years old. How old is his oldest brother?

Asked by Neha on 13 Jun 2025

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Asked by Neha on 18 Jan 2025


Can you arrange four 9's and use at most 2 math symbols, to make the total 100?

Asked by Neha on 21 Nov 2023

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

Asked by Neha on 24 Sep 2023

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

Asked by Neha on 12 Jul 2021


A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

Asked by Neha on 03 Mar 2022

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Amazing Facts

Word ladder puzzle

The word ladder puzzle was invented by Lewis Carroll, author of Alice’s Adventures in Wonderland.