if x is 20 percent more than y and y is 50 percent less than z , then x is what percent of z ?
"let ' s take values of x , y , z which can satisfy given equations . let z = 200 , so y becomes 100 ( since y is 50 % less than z ) , x becomes 120 ( since 20 % more than y ) now req is ( x / z ) * 100 = ( 120 / 200 ) * 100 = 60 % answer : e"
multiply(add(const_1, divide(20, const_100)), subtract(const_100, 50))