Question

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

Answer 1

Let the present age of Shikha be x years.
Therefore, the present age of Shikha’s brother Ravish $=(x+3)\text{years.}$
So, sum of their ages $=x+(x+3)$
$\Rightarrow x+(x+3)=37$
$\Rightarrow 2x+3=37$
Subtracting 3 from both sides, we get
$\Rightarrow 2x+3–3=37–3$
$\Rightarrow 2x=34$
Dividing both sides by 2, we get
$\Rightarrow \frac{2x}{2}=\frac{34}{2}$
$\Rightarrow x=17$
Therefore, the present age of Shikha $=17\text{years,}$
And the present age of Ravish $=x+3=17+3=20\text{years.}$