if 25 % of x is 5 less than 10 % of 500 , then x is ?
"25 % of x = x / 4 ; 10 % of 500 = 10 / 100 * 500 = 50 given that , x / 4 = 50 - 5 = > x / 4 = 45 = > x = 180 . answer : b"
divide(subtract(multiply(500, divide(10, const_100)), 5), divide(25, const_100))