if a ' s income is 25 % less than b ' s . by what % b ' s income is greater than a ?
if b ' s income is rs 100 , a ' s income = rs 75 % b ' s income is greater than a = 100 * 25 / 75 = 33.33 % answer : c
multiply(subtract(divide(const_100, subtract(const_100, 25)), const_1), const_100)