Question

The sum of the present ages of a father and his son is 60 years. Six years ago, father's age was five times the age of the son. After 6 years, son's age will be

• A. 12 years
• B. 14 years
• C. 18 years
• D. 20 years

Answer 1

The correct option is D 20 years

Let the present ages of son and father be x and (60-x) years respectively.
The, (60 -x) - 6 = 5(x - 6)
$\Rightarrow 54-x=5x-30$
$\Rightarrow x=14$
$\therefore$ Son's age after 6 years = (x + 6) = 20 years