Question

Aman's age is three times his son's age.ten years ago,he was 5 times his son's age.find their present age.

Answer 1

Son's age is 20 yrs
Father's age is 60 yrs

Answer 2

Given :

Aman's age is three times his son's age.

Ten years ago,he was 5 times his son's age.

To Find :

Their present age.

Solution :

Let present age of Son = x years

Therefore present age of Aman = 3x years

Ten years ago          

Son's age = (x-10) years

Aman's age = (3x-10) years

According to question :

     [Son's age (10 years ago)]*5 = [Aman's age (10 years ago)]

=>                       (x -10)*5 = (3x -10)

=>                         5x - 50 = 3x - 10

=>                          5x - 3x = -10 + 50

           

=>                              2x = 40

=>                                x = 20

and                              3x = 60

∴               Son's present age = 20 years

 

             Aman's present age = 60 years