a , b , c can complete a piece of work in 24 , 6,12 days . working together , they complete the same work in how many days ?
"a + b + c 1 day work = 1 / 24 + 1 / 6 + 1 / 12 = 7 / 24 a , b , c together will complete the job in 24 / 7 days answer is e"
divide(const_1, add(add(divide(const_1, 24), divide(const_1, add(const_4, const_2))), divide(const_1, multiply(const_2, add(const_4, const_2)))))