A fellow borrowed a certain sum of money at 3% per annum at simple interest and in 3 years the interest amounted to Rs.1820 less than the sum lent. What was the sum lent?	Choose one
A) 1050 B) 1220 C) 1250 D) 2000 E) 1110

Rationale: "p - 1820 = ( p * 3 * 3 ) / 100 p = 2000 answer : d"
Answer: D