Question

The age of father 5years ago was 5times the age of his son at present the father's age is 3times that of his son what is the present age of his

Answer 1

Let, the present age of the son be, 'x'

∴ The age of the father = (x*3)

                                       = 3x

5 years ago the age of the son was = (x-5) years

5 years ago the age of the father was = (3x-5) years

By condition,

(x-5)*5 = 3x-5

or, 5x-25 = 3x -5

or, 5x-3x = -5 +25

or, 2x=20

or, x = 20/2

or, x = 10

So, the present age of the son is 10 years.

∴ The present age of the father = (10*3) years

                                                     = 30 years

(Ans): The age of the son is 10 years; The age of the father is 30 years.