Question

The age of the father is 7 times the age of the son. After 10 years, the age of the father will be 3 times the age of the son. So what is the current age of the son? ​

Answer 1

Let the present age of son be x.

Present age of father=4x.

Now,

Ten year hence his father age will be 3 times his son.

A/q

4x + 10 = 3(x + 10) \\ 4x + 10 = 3x + 30 \\ 4x - 3x = 30 - 10 \\ x = 20

So,

Son age is=20 years

And father age is=4×20=80 years