15 years hence , rohan will be just 4 times as old as he was 15 years ago . how old is rohan at present ?	Choose the correct choice from the following answers:	A) 20	B) 25	C) 30	D) 35	E) 40

Rationale: let the present age of rohan be x years then , given : x + 15 = 4 ( x - 15 ) x = 25 answer : b
Answer: B