If the simple interest on a certain amount in at 4% rate 5 years amounted to Rs.2240 less than the principal. What was the principal?	Choose one
A) 1500	B) 2500	C) 2507	D) 2800	E) 11500

Rationale: "p - 2240 = ( p * 5 * 4 ) / 100 p = 2800 answer : d"
Answer: D