Question

Mom is 60 years old and daughter is half mom's age. How old was daughter when mom was 4 times her age?

Answer 1

10 years old

Explanation:

The difference in ages is 60 -30 = 30 years. When mom was 4 times daughter's age, the difference in their ages was 3 times the daughter's age.

The age difference was 30 years at that time, so the daughter was 10 years old.