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A and B together can complete a work in 12 days. A alone can complete it in 20 days. If B does the work only for half a day daily, then in how many days A and B together will complete the work? |
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Answer» 15 DAYS B's 1 day WORK = (1/12 - 1/20) = 1/30 Now, (A + B)'s 1 day work = (1/20 + 1/60) = 1/15 So, A and B together will complete the work in 15 days. |
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