Question

A mother is 30 years older than her son. Fifteen years ago the son was 1/3 of

Answer 1

Let s be the son's age 15 yeasr ago and m the mother's age that year.

$s = \dfrac{m}{3}$

We also know that:

$m = s+30$

Plotting vallues:

$s = \dfrac{m}{3}\\\\\\3s = s+30\\\\2s = 30\\\\s = 15\\\\m = 45$

Remember that they were that age 15 years ago.

So their actual age is 30 and 60.

Answer 2

nevermind that was wrong