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SSC Quantitative Aptitude Pipes & Cisterns Question Bank Pipe and Cistern (I)

  • question_answer
    A cistern is normally filled in 8 h but takes 2 h more to fill because of a leak in its bottom. If the cistern is full, then the leak will make it empty in

    A) 16 h

    B) 20 h

    C) 32 h

    D) 40 h

    Correct Answer: D

    Solution :

    [d] Let leak will empty the tank in x h. \[\therefore \]      \[\frac{1}{8}-\frac{1}{x}=\frac{1}{10}\] \[\Rightarrow \] \[\frac{1}{x}=\frac{5-4}{40}=\frac{1}{40}\] \[\therefore \]      \[x=40\,h\]


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