a number x is 18 times another number y . the percentage that y is less than x is
"say y = 1 and x = 18 . then y = 1 is less than x = 18 by ( 18 - 1 ) / 18 * 100 = 17 / 18 * 100 = 94.4 % . answer : d ."
multiply(divide(subtract(18, const_1), 18), const_100)