Question

Fifteen years from now Ravi's age will be four times his present age. What is David's present age?

Answer 1

$\huge\bf{Answer:-}$

Refer the attachment.

Answer 2

Let the present age of Ravi be x.

Fifteen years later, Ravi age will be x+15 years.

According to the question,

x + 15 = 4x

⇒ 4x – x = 15

⇒ 3x = 15

⇒ x = 15/3

⇒ x = 5

Therefore, Present age of Ravi = 5 years.