The ratio of the ages of the father and the daughter at present is 3:1 four years a go the ratio was 4:1.The average age of the father and daughter 2 years hence will be :

Options

A. 24
B. 26
C. 25
D. 36

Answer

B

Explanation

Let the present ages of the father be 3x and daughter be x so the 4 years a go fathers age and daughter.s age was
(3x-4) and (x-4) therefore ((3x-4)/(x-4))=4
x=12 years and 3x=36 years Hence the present average age of father and daughter =24 years and the average age 2 years hence will be 26 years.