Question

A father is 60 years old and his son is half his age. How old was the boy when his father was four times his age?

Answer 1

60 because when the father is 4 times his age he would be 120, and we know that when the father was 60 the boy was 30.
That would make the boy 60

Answer 2

He would be 120 yrs old because 60 times 4 is 240 and the son is half of his age so 240 divided by 2 is 120 hope this helped