Question

Shikha is 3 years younger to her brother Ravish. If the sum of their ages is 37 years, what are their present ages?

Answer 1

Let the present age of Shikha = 'x' years.
So, the present age of Shikha's brother Ravish = (x + 3) years.
So, sum of their ages = x + (x+ 3)
⇒ x + ( x + 3 ) = 37
⇒ 2x + 3 = 37
Subtracting 3 from both sides, we get
⇒ 2x + 3 $-$ 3 = 37 $-$ 3
⇒ 2x = 34
Dividing both sides by 2, we get
⇒ $\frac{2x}{2}=\frac{34}{2}$
⇒ x = 17
So, the present age of Shikha = 17 years, and the present age of Ravish = x+ 3 = 17 + 3 = 20 years.