Find the sum lend at C.I. at 5 p.c per annum will amount to Rs.650 in 2 years?	Pick one
A) 221	B) 287	C) 400	D) 589	E) 171

Rationale: "explanation : 650 = p ( 21 / 20 ) 2 p = 589.56 answer : d"
Answer: D