find the amount on rs . 5000 in 2 years , the rate of interest being 20 % per first year and 25 % for the second year ?
"5000 * 120 / 100 * 125 / 100 = > 7500 answer : d"
divide(multiply(divide(multiply(5000, add(const_100, 20)), const_100), add(const_100, 25)), const_100)