2. Sample Papers
  3. Railways
  4. Quantitative Aptitude
  5. Pipes & Cisterns

Railways Quantitative Aptitude Pipes & Cisterns Sample Paper Pipes and Cisterns Sample Test Paper-11

  • question_answer
    One tap can fill a cistern in 2 hours and another can empty the cistern in 3 hours. How long will they take to fill the cistern if both the taps are open?

    A)  7 hours

    B)  6 hours

    C)  5 hours

    D)  8 hours

    Correct Answer: B

    Solution :

    [b] Work of both tap for 1 hour\[=\frac{1}{2}-\frac{1}{3}=\frac{1}{6}\] Hence, both tap will the cistern in 6 hours.


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