Question

When I was 6 my sister was 29 now that I am 37 how old is my sister?

Answer 1

your sister is 60 years old.

Answer 2

If you were 6 and your sister was 29, you have an age difference of 23 years. That means to work out her age when you're 37, you just have to add on 23 to your age.

37 + 23 = 60.

Your sister's age is 60 :)