Question

Four years ago, the father's age was three times the age of his son. The total of the ages of the father and the son after four years, will be 64 years. What is the father's age at present?

• A. 32 years
• B. 36 years
• C. 44 years
• D. Data inadequate
• E. None of these

Answer 1

The correct option is E

None of these

Let the ages of father and son 4 years ago be 3x and x years respectively.

Then, [(3x+4) +4] + [(x +4)+4] = 64 $\iff$ 4x=48$\iff$x=12.

So present age of father is 40 years