The age of father is twice that of the elder son. After ten years, the age of father will be three times that of the younger son. If the difference of ages of the two sons is 15 years, the age of the father is?

Options

A. 50
B. 55
C. 60
D. 70

Answer

A

Explanation

Let the age of the elder son be x, so the younger son is (x - 15) years.
` rArr 2x + 10 = 3 [ (x - 15) + 10]` . This gives x = 25
` therefore ` Father.s age = 50 years.