If the simple interest on a certain amount in at 4% rate 5 years amounted to Rs.2160 less than the principal. What was the principal?
Choose the correct answer:
A) 1500
B) 2500
C) 2700
D) 3200
E) 11500

Rationale: p - 2160 = ( p * 5 * 4 ) / 100 p = 2700 answer : c
Answer: C