A and B can together complete a piece of work in 4 days. If A can alone can complete the same work in 12 days, in how many days can B alone complete that work?\nOptions:\n(A) 6\n(B) 5\n(C) 4\n(D) 3\n(E) 2 Hmmm, my stream of consciousness:
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(A+B)'s 1 day work = 1/4\nA's 1 day work = 1/12\nB's 1 day work = 1/6 So, the answer is (A).
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