question_answer

The ratio of the present ages of a son and his father is 1 : 5 and that of his mother and father is 4 : 5. After 2 years the ratio of the age of the son to that of his mother becomes 3 : 10. What is the present age of the father?

A) 30 years

B) 28 years    

C) 37 years

D) Data inadequate

E) None of these