Ten years ago, a man was seven times as old as his son. Two years hence, twice his age will be equal to five times the age of his son. What is the present age of the son ?

Ten years ago, a man was seven times as old as his son. Two years henc

1.	Ten years ago, a man was seven times as old as his son. Two years hence, twice his age will be equal to five times the age of his son. What is the present age of the son ?
A.	2 years
B.	3 years
C.	4 years
D.	5 years
Answer» D. 5 years