how much more would rs . 20000 fetch , after two years , if it is put at 20 % p . a . compound interest payable half yearly than if is put at 20 % p . a . compound interest payable yearly ?
"20000 ( 11 / 10 ) 4 - 20000 ( 6 / 5 ) 2 = 6 , 602.50 answer : a"
subtract(multiply(power(add(const_1, divide(divide(20, const_100), const_2)), const_4), 20000), multiply(power(add(divide(20, const_100), const_1), const_2), 20000))