Student: A can do a piece of work in 12 days. When he had worked for 2 days B joins him. If the complete work was finished in 8 days. In how many days B alone can finish the work?\nOptions:\n(A) 18\n(B) 77\n(C) 66\n(D) 55\n(E) 12.
Another student: Let's say, hmmm...

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8/12 + 6/x = 1\nX = 18 days Final answer: (A).
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