40 is divided into two parts in such a way that seventh part of first and ninth part of second are equal . find the smallest part ?
"x / 7 = y / 9 = > x : y = 7 : 9 7 / 16 * 40 = 17.5 answer : b"
divide(multiply(divide(add(const_4, const_3), add(add(const_4, const_3), const_2)), 40), const_2)