find the compound interest on $ 30000 in 2 years at 4 % per annum , the interest being compounded half - yearly ?
"principle = $ 10000 rate = 2 % half yearly = 4 half years amount = 30000 * ( 1 + 2 / 100 ) ^ 4 = 30000 * 51 / 50 * 51 / 50 * 51 / 50 * 51 / 50 = $ 32472.96 c . i . = 32472.96 - 10000 = $ 2472.96 answer is d"
subtract(multiply(power(add(divide(divide(4, const_100), 2), const_1), 4), 30000), 30000)