Some question: A and B can do a work in 5 days and 10 days respectively. A starts the work and B joins him after 2 days. In how many days can they complete the remaining work?\nOptions:\n(A) 6\n(B) 2\n(C) 3\n(D) 4\n(E) 98
Some stream of consciousness:
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Work done by A in 2 days = 2/5\nRemaining work = 3/5\nWork done by both A and B in one day = 1/5 + 1/10 = 3/10\nRemaining work = 3/5 * 10/3 = 2 day The answer: (B).
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