Question

A ball drops from a height of 4802 m Thereafter it bounces every time to a height which is 14.28% less than its previous height What height will the ball reach on its $4^{th}$ bounce? (in m )

Answer 1

I wonder how many of you will notice that 14.28% $=\frac{1}{7}$
Therefore
the ball is rising up to a height which is $=\frac{1^{th}}{7}$ less than the previous height Or the ball is rising
up to a height which is $\frac{6}{7}$ of the previous
height
Therefore on its 4th bounce the ball ill reach a
height $=4802\times \frac{6}{7}\times \frac{6}{7}\times \frac{6}{7}\times \frac{6}{7}=2592m$