A father is60 years old and his son is half his age. How old was the boy when his father was four times his age

Answer: the son is 60 years old

Step-by-step explanation: First you divide the fathers age by 2 (60 / 2) = 30 so if the father is four times the boys age then the father would be 120 divided by 2 because the son is half the fathers age the son would be 60 years old.

The boy would be 10 when his father was four times his age because the boy was born when the father was 30 and now that the boy is half of 60 he's 30. By subtracting 60 from 30 that gives you the age of the father when the boy was born. So when the boy is ten that would mean the father is 40 and 40 divided by ten is four