find the amount on rs . 7000 in 2 years , the rate of interest being 4 % per first year and 5 % for the second year ?
"7000 * 104 / 100 * 105 / 100 = > 7644 answer : d"
divide(multiply(divide(multiply(7000, add(const_100, 4)), const_100), add(const_100, 5)), const_100)