Question

Fifteen years later a man will be four times as old as he was 15 years ago.How old is he now?

Answer 1

Assume the present age of a man is x years

Given

x + 15 = 4(x – 15)

x + 15 = 4x – 60

3x = 75

x = 25

The present age of a man is 25 years.