Question

Sunita's age is three times the age of her son Ram. Ten years ago, Sunita was four times the age of Ram find their present age.

Answer 1

Let Ram's age is $x$ years.

Then Sunita's age is $3x$ [Given].

Now $10$ years ago Ram's age was $x-10$ years and that of Sunita's was $3x-10$ years.

According to the problem,

$(3x-10)=4(x-10)$

or, $x=30$.

So Ram's age is $30$ years and that of Sunita is $90$ years.