Question

Question 10
Aman’s age is three times his son’s age. Ten years ago he was five times his son’s age. Find their present ages.

Answer 1

Let the present age of Aman’s son be xyears.
Therefore,Aman’s age = 3x years

According to question,
$3x-10=5(x-10)$
$\Rightarrow 3x-10=5x-50$
$\Rightarrow 3x-5x=-50+10$
$\Rightarrow -2x=-40$
$\Rightarrow x=\frac{-40}{-2}years$

Hence, Aman’s son’s age = 20 years and
Aman’s age = 3 x 2= 60 years