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1. Pipes A and B can fill a tank in 5 and 6 hours respectively. Pipe C can empty it in 12 hours. If all the three pipes are opened together, then the tank will be filled in:





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  • By: guest on 01 Jun 2017 05.47 pm
    Net part filled in 1 hour 1 + 1 - 1 = 17 . 5 6 12 60 The tank will be full in 60 hours i.e., 3 9 hours. 17 17
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