Question

At some time age of father is equal to present age of son if at that time age of father is 4 times of son's age and sum of age of father and son is 99 find the age of son after 5 year?

Answer 1

Answer:

Step-by-step explanation:

Let present age of father =x

Let present age of son=y

x=4y(equation 1)

x+4y=99(equation 2)

x-5+4y=99(equation 3)

From 1 and 3

4y-5+4y=99

8y=104

y=13

x=13×4

x=52