a sum of money lent at compound interest for 2 years at 20 % per annum would fetch rs . 482 more , if the interest was payable half yearly than if it was payable annually . the sum is
explanation : let sum = rs . x c . i . when compounded half yearly = c . i . when compounded annually = = > x = 20000 answer : b ) 20000
divide(482, subtract(power(add(divide(divide(20, const_2), const_100), const_1), const_4), power(add(divide(20, const_100), const_1), const_2)))