Fatima is twice as old as her son Imran. The sum of their ages is 57 years. How old is Fatima?

Explanation

1. 01

   Let Imran be $x$; Fatima is $2x$.

2. 02

   $3x = 57$, so $x = 19$.

3. 03

   Fatima = $2 \times 19 = 38$ years.