if x is 30 percent more than y and y is 40 percent less than z , then x is what percent of z ?
"z = 100 ; y = 60 so x = 78 x as % of z = 78 / 100 * 100 = > 78 % answer will be ( a )"
multiply(add(const_1, divide(30, const_100)), subtract(const_100, 40))