A cistern can be filled by pipe A and B in 4 hours and 6 hours respectively. When full, the cistern can be emptied by a pipe C in

Question

A cistern can be filled by pipe A and B in 4 hours and 6 hours respectively. When full, the cistern can be emptied by a pipe C in 8 hours. if all the pipe be turned on at the same time, the cistern will be full in..​

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Amelia 11 months 2021-06-30T09:40:11+00:00 1 Answers 0 views 0

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    2021-06-30T09:41:17+00:00

    Step-by-step explanation:

    A pipe = 1/4

    B pipe = 1/6

    So add them both

    1/4 + 1/6

    6/24 + 4/24

    = 10 / 24 hours and 10/24 becomes 5/12 hours

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