Question

The ages of Nirav and his mother is is in the ratio 1:2 . 10 years ago their ages were in the ratio 1:3. What is the present age of Nirav​

Answer 1

Explanation:

to find:

•present age of Nirav

solution:

the ratio of ages of Nirav and his mother=1:2

Let ages of Nirav and his mother=1x:2x

ages of Nirav and his mother 10 years ago = 1x-10:2x-10

= 1:3———(1)

solving equation 1

$\frac{1x - 10}{2x - 10} = \frac{1}{3}$

$⟹3x - 30 = 2x - 10$

$⟹3x - 2x = 30 - 10$

$⟹ x = 20$

Age of Nirav = 1x = 20 years

Age of her mother = 2x = 2×20 = 40 years