Q: A and B complete a work in 9 days. A alone can do it in 18 days. If both together can do the work in how many days?\nOptions:\n(A) 6 days\n(B) 8 days\n(C) 5 days\n(D) 7 days\n(E) 15 days Let's give some random thoughts before answering.
User
1/9 + 1/18 = 1/6\n6/1 = 6 days
Therefore, the answer is (A).
Assistant