Question

Six years from now, Kirti's age will be twice the age of her brother Kuna!, but 4 years ago she was four times as old as Kuna! was then. Find the present age of Kunal.

Options

• 9 years

• 15 years

• 30 years

• 24 years

Answer 1

9 years

Explanation:

Present age of Kunal is x and kirti age 'y'.

After six-year,

(x + 6) × 2 = y + 6  .......(i)

Before '4' years,

(x – 4) x 4 = y – 4  ......(ii)

From (i) and (ii)

2x + 12 – 6 = 4x – 12

2x = 18

⇒ x = 9 years