Question

Three years ago Sunil’s age was four times his sister Shruti’s age. After 5 years from now, Sunil’s age will be two times Shruti’s age. Find their present age. Find the present age of their father also who was 25 years old when Sunil was born.

Answer 1

Answer:

Shruti is 7 years old and Sunil is 19 years old

Step-by-step explanation:

Define x:

Let Shruti's age be x 3 years ago

Define their age 3 years ago:

Shruti = x

Sunil = 4x

Define their age now:

Shruti = x + 3

Sunil = 4x + 3

Define their age 5 years later:

Shruti = x + 3 + 5 = x + 8

Sunil = 4x + 3 + 5 = 4x + 8

Solve x:

Sunil's age will be 2 times Shruti's age

4x + 8 = 2(x + 8)

4x + 8 = 2x + 16

2x = 8

x = 4

Find their present age:

Shruti = x + 3 = 4 + 3 = 7 years old

Sunil = 4x + 3 = 4(4) + 3 = 19 years old

Answer: Shruti is 7 years old and Sunil is 19 years old

Answer 2

Refer to the attachment please.