Question

Bill is four times as old as Monica. In 14 years time, their total age will be 108. What is Monica's age now?​

Answer 1

Let b = Bill's present age

m = Monica's present age

b = 4m

b + 14 + m + 14 = 108

4m + 14 + m + 14 = 108

5m + 28 = 108

5m = 80

m = 16, b = 64

Monica is now 16 years old, and Bill is now 64 years old. In 14 years, Monica will be 30 years old, and Bill will be 78 years old.

30 + 78 = 108