how much interest will $ 10,000 earn in 9 months at an annual rate of 10 % ?
"soln : - 9 months = 3 / 4 of year ; 10 % = 10 / 100 = 1 / 10 ; $ 10,000 ( principal ) * 3 / 50 ( interest rate ) * 1 / 10 ( time ) = $ 60 . answer : d"
multiply(multiply(power(const_100, const_2), divide(10, const_100)), divide(const_3, 10))