A, B and C can do a work in 4 days, 8 days and 12 days respectively. In how many days can all three of them working together, complete the work?\nOptions:\n(A) 2 2/3\n(B) 2 2/8\n(C) 2 2/0\n(D) 2 2/2\n(E) 2 2/11 Stream of consciousness first, then make a decision:
User
Work done by all three of them in one day = 1/4 + 1/8 + 1/12 = 11/24\nThe number of days required = 24/11 = 2 2/11 days.
Thus, the answer is (E).
Assistant