The compound interest on a sum of ₹ 15,000 at 4% per annum for a period of 2 years, compounded annually will be equal to
₹ 1224
Using the formula A = P(1+r100)n and substituting P = ₹ 15,000 , t = 2 years , r = 4 p.a , we have
A = ₹ 15,000 × (1 + 4100)2 = ₹ 15,000 × 2625 × 2625 = ₹ 16,224.
C.I = A - P
∴ C.I. = ₹16,224 − 15,000 = ₹ 1224.