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
    Two pipes A and B can fill a cistern in 10 and 15 minutes respectively, but an empty pipe C can empty it in 5 minutes. The pipes A and B are kept open for 4 minutes and the emptying pipe C also opened, hi what time is the cistern emptied?

    A)  10 minutes       

    B)  16 minutes

    C)  20 minutes       

    D)  22 minutes.

    Correct Answer: C

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