Two persons A and B can complete a piece of work in 15 days and 30 days respectively. If they work together, what part of the work will be completed in 5 days?\nOptions:\n(A) 1/8\n(B) 1/3\n(C) 1/6\n(D) 1/2\n(E) 5/3 Stream of consciousness:
User
A's one day's work = 1/15\nB's one day's work = 1/30\n(A + B)'s one day's work = 1/15 + 1/30 = 1/10\nThe part of the work completed in 5 days = 5 (1/10) = 1/2.
Thus, the answer is (D).
Assistant