Question

Salma is 3 years younger than Hetvi.If the sum of their present age is 27 years, Find their present ages.

Answer 1

Suppose, the present age of Hetvi is 'y'
Salma is 3 years younger than Hetvi therefore the present age of Salma is (y-3) years.The sum of their present age is y+(y-3), which is 27 years.
$\therefore y+(y-3)=27$
$\therefore y+y-3=27$
$\therefore 2y-3=27$
$\therefore 2y=27+3$
$\therefore y=\frac{30}{2}$
$y=15$
$\therefore$ the Present age of Hatvi is 15 years.
Therefore , the present age os salma is y-3=15-3=12 years.