Multiple Choice Questions on Pipe A alone can fill up a tank in 8 hours Pipe B alone can completely empty the same tank in ........... for CDS Exam Preparation

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Multiple Choice Questions

Pipe A alone can fill up a tank in 8 hours Pipe B alone can completely empty the same tank in ...........

Quantitative Aptitude (CDS) Pipes&cistern
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     Pipe A alone can fill up a tank in 8 hours. Pipe B alone can completely empty the same tank in 16 hours. If both the pipes are opened simultaneously, in how much time tank will get completely filled.?

    12hours
     

    Incorrect Answer

    14hours

    Incorrect Answer

    16hours
     

    Correct Answer

    20hours

    Incorrect Answer
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    Explanation:

    x/8 - x/16 = 1
    x/16 = 1 
    x = 16 hours

    By: bhavesh kumar singh
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