A father is 4 times as old as his son. After 6 years he will be 3 times as old. What is the son's current age?

Question

Accepted Answer

(B) 12. Explanation: Let son = x, father = 4x. After 6 years: 4x+6 = 3(x+6) → 4x+6=3x+18 → x=12.