A person lent a certain sum of money at 4% per annum at simple interest and in 8 years the interest amounted to Rs.272 less than the sum lent. What was the sum lent? Select.
A) 400	B) 278	C) 289	D) 500	E) 821

Rationale: "p - 272 = ( p * 4 * 8 ) / 100 p = 400 answer : a"
Answer: A