The ratio of the ages of the father and daughter at present is 3:1. Fo

SOLUTION

let the present age of father be 3x and daughter be x.

So, the 4 years ago father’s age and daughter’s age was (3x-4) and (x-4) respectively.

Therefore,

x=12 years and 3x= 36 years

hence present average age of father and daughter is (12+36)/2= 24

and average age  2 years hence will be 26 years.