Compound interest of Rs.1000 at 10% per annum for 1 1/2years will be (interest compounded half yearly).  Select
A) rs . 473
B) rs . 374
C) rs . 495
D) rs . 157
E) none of the above

Rationale: "10 % interest per annum will be 5 % interest half yearly for 3 terms ( 1 1 / 2 years ) so compound interest = 3000 [ 1 + ( 5 / 100 ) ] ^ 3 - 1000 = 1000 [ ( 21 / 20 ) ^ 3 - 1 ] = 1000 ( 9261 - 8000 ) / 8000 = 1 * 1261 / 8 = 157 answer : d"
Answer: D