Question

Half of a herd of deer are grazing in the filed and three fourth of the remaining are playing nearby, The rest $9$ are drinking water from the pond. Find the number of deer in the herd.

Answer 1

Let the number of deer in the herd $=x$

According to Question

$x-\frac{x}{2}-\frac{x}{2}\left(\frac{3}{4}\right)=9\Rightarrow x-\frac{7x}{8}=\frac{x}{8}=9\Rightarrow x=72$