if sum of two no . is 12 and subtraction to that is 4 . so how much min . should added to smaller no . to make it even ?
let smaller no . be x . bigger no . = 12 - x . 12 - x - x = 4 . 12 - 2 x = 4 2 x = 8 , x = 4 . so 4 is itself even no . so , zero should be added . answer e
multiply(divide(subtract(12, 4), const_2), const_1)