Mrs Roberts is 3 times as old as her son. The sum of their ages is 48 years. How old was Mrs. Roberts when her son was born?

4 answers

Sandy -- are you in 4th grade or 6th grade math?
6th grade
x + 3x = 48

4x = 48

x = 12

Mrs. Roberts is 36. Her son is 12.

How old was she when he was born?
24