A father is 4 times as old as his son.
In 20 years, he’ll be only twice as old.
How old are they now?

Q: A father is 4 times as old as his son. In 20 years, he’ll be only twice as old. How old are they now?

Father 40, Son 10.. Let son = x. Then 4x + 20 = 2(x + 20) → 4x + 20 = 2x + 40 → x = 10. The puzzle reads like a riddle but it’s just two honest equations.

Question

Accepted Answer

Father 40, Son 10. — Let son = x. Then 4x + 20 = 2(x + 20) → 4x + 20 = 2x + 40 → x = 10. The puzzle reads like a riddle but it’s just two honest equations.