if 15 % of 40 is greater than 25 % of a number by 2 , then find the number is ?
"15 / 100 * 40 - 25 / 100 * x = 2 or x / 4 = 4 so x = 16 answer c"
divide(subtract(multiply(divide(15, const_100), 40), 2), divide(25, const_100))