The age of Somu is one-third his father's. 7 years back he was one-fifth of his father's age. What is his persent age ?	Choose the correct choice from the following answers:
A) 11	B) 13	C) 14	D) 12	E) 10
Explanation :   Let Somu's age be x and that of his father be 3x.   So, x - 7 = 3x - 7/5 = x = 14   Answer : Option 14
<result>C</result>
The age of Somu is one-third his father's. 7 years back he was one-fifth of his father's age. What is his persent age ?