Math Word Problem

Question

1. On his birthday, Dominic announced, “I have lived a quarter of my life as a boy, ⅕ of my life as a teenager, and ⅓ as a young man. And the 13 years since then has been the best part of my life? How old is Dominic today?

Answer 1

1/4 + 1/5 + 1/3 = 15/60+ 12/60 + 20/60 = 47/60

1-47/60 = 13/60

13/60 of Age = 13

Age = (/13)(13) = 60 years old

15 years as a boy, 12 years as a teenager, 20 years as a young man, 13 as an older man

15+12+20+13 = 60