Question

Rahul's mother is 50 years old and Rahul is 20 years old. How many years ago was his mother 4 times as old as Rahul?

Answer 1

Answer:

Let the present age of the Rahul be x years.

So, present age of his mother is 6x years.

Given, rahul's age five years from now will be one-third of his mother's present age.

⇒x+5=2x

⇒5=2x−x

[Transposing x to RHS]

⇒x=5

Therefore, present age of Rahul is 5 years and that of his mother is 6×5=30 years