A man is 24 years older than his son. In two years, his age will be twice the age of his son. The present age of his son is:
14 years
18 years
20 years
22 years
Explanation:
Let the sons present age be $ x $ years. Then, mans present age = $\left(x + 24\right)$ years.
$\therefore$ $\left(x + 24\right)$ + 2 = 2$\left(x + 2\right)$
$\Rightarrow x $ + 26 = 2$ x $ + 4
$\Rightarrow x $ = 22.