After being dropped, a certain ball always bounces back to 2/5 of the height of its previous bounce. After the first bounce it reach a height of 125 inches. How high (in inches) will it reach after its fourth bounce?

After being dropped, a certain ball always bounces back to 2/5 of the height of its previous bounce. After the first bounce it reach a height of 125 inches. How high (in inches) will it reach after its fourth bounce?

A 20

B 15

C 8

D 3.2

Solution

Correct Answer: Option C

The required height = (2/5)3 * 125 inches

= 8 inches