Question

Present age of Ravi is 'p' years. After 7 years his age will be 24 years. Then the present age of Ravi is​

Answer 1

Let Ravi's present age be x years.

After 15 years, his age will be (x+15) years.

It is given that after 15 years, Ravi's age will be four times his present age.

∴4x=x+15

⇒4x−x=15

⇒3x=15

⇒x=315=5

Hence, Ravi's present age is 5 years.

Answer 2

Let Ravi's present age be x years.

After 15 years, his age will be (x+15) years.

It is given that after 15 years, Ravi's age will be four times his present age.

∴4x=x+15

⇒4x−x=15

⇒3x=15

⇒x=

3

15

=5

Hence, Ravi's present age is 5 years.