if y is 75 % greater than x , than x is what % less than y ?
"y = 1.75 x x = y / 1.75 = 100 y / 175 = 4 y / 7 x is 3 / 7 less which is about 42.9 % less than y . the answer is d ."
multiply(divide(75, add(75, const_100)), const_100)