Multiple Choice Questions on A cistern is normally filled in 8 hours but it takes 2 hours more to get filled because of a l........... for CDS Exam Preparation

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Multiple Choice Questions

A cistern is normally filled in 8 hours but it takes 2 hours more to get filled because of a l...........

Quantitative Aptitude (CDS) Pipes&cistern
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     A cistern is normally filled in 8 hours but it takes 2 hours more to get filled because of a leak at its bottom. In how much time the leak alone can empty the cistern completely?

    40hours

    Correct Answer

    44hours

    Incorrect Answer

    36hours

    Incorrect Answer

    45hours

    Incorrect Answer
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    Explanation:

    x/8 - y/10 = 1
    -y = -1
    x/8 - x/10 = 1
    2x/80 = 1
    x = 40
    -40/y = -1
    y = 40 hours.

    By: bhavesh kumar singh
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