Find the sum lend at C.I. at 5 p.c per annum will amount to Rs.240 in 2 years? Choose the correct answer:
A) 217 B) 287 C) 400 D) 288 E) 171

Rationale: "explanation : 240 = p ( 21 / 20 ) 2 p = 217 answer : a"
Answer: A