9, Jennifer is now 3 years older than Peter. If, in 12 years, the sum of their ages will be 61, how

old is Jennifer now?

Jennifer age = 20.

Step-by-step explanation:

Given : Jennifer is now 3 years older than Peter. If, in 12 years, the sum of their ages will be 61.

To find : how old is Jennifer now.

Solution : We have given

Let the age of Peter = x.

According to question

Jennifer is now 3 years older than Peter.

Jennifer age = x + 3

After 12 year

Peter age = x + 12

Jennifer age = x + 15

Sum of their age would be 61.

x + 12 + x + 15 = 61.

2x + 27 = 61.

2x = 61 - 27.

2x = 34.

On dividing both sides by 2

x = 17

Peter age = 17.

Jennifer age = 20.

Therefore, Jennifer age = 20.