Question

Two cats Billy and Kitty together catch $60$ mice. If Billy catches three mice for every two caught by Kitty, then the number of mice caught by Kitty is

• A. $24$
• B. $30$
• C. $36$
• D. $40$

Answer 1

Answer: (A)

$24$

Ratio of number of mice caught by Billy and Kitty $=3:2$.

Let, the number of mice be $3x$ and $2x$

Therefore,
$3x+2x=60$
$\Rightarrow 5x=60$

$\Rightarrow x=\frac{60}{5}$

$\Rightarrow x=12$

Hence, number of mice caught by Kitty $=2x$

$=2\times 12$

$=24$