on a sum of money , the simple interest for 2 years is rs . 325 , while the compound interest is rs . 340 , the rate of interest being the same in both the cases . the rate of interest is
"explanation : the difference between compound interest and simple interest on rs . p for 2 years at r % per annum = ( r ã — si ) / ( 2 ã — 100 ) difference between the compound interest and simple interest = 340 - 325 = 15 ( r ã — si ) / ( 2 ã — 100 ) = 15 ( r ã — 325 ) / ( 2 ã — 100 ) = 15 r = 9.23 % answer : option c"
divide(multiply(const_100, subtract(subtract(340, divide(325, 2)), divide(325, 2))), divide(325, 2))