a trader bought a car at 5 % discount on its original price . he sold it at a 40 % increase on the price he bought it . what percent of profit did he make on the original price ?
"original price = 100 cp = 95 s = 95 * ( 140 / 100 ) = 133 100 - 133 = 5 % answer : b"
multiply(subtract(divide(divide(multiply(subtract(const_100, 5), add(const_100, 40)), const_100), const_100), const_1), const_100)