2. Questions Bank
  3. SSC
  4. Quantitative Aptitude
  5. Pipes & Cisterns

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

  • question_answer
    A bath tub is filled by pipe A in 4 min and is emptied by pipe B in 5 min. If both pipes are opened together, then time taken to fill the bath tub is

    A) 15 min

    B) \[18\frac{2}{3}\]min

    C) 20 min

    D) 25 min

    Correct Answer: C

    Solution :

    [c] \[\because \]1 h work of pipe\[A=\frac{1}{4}\] and 1 h work of pipe\[B=\frac{1}{5}\] \[\therefore \]1 h work of both pipes\[=\frac{1}{4}-\frac{1}{5}=\frac{1}{20}\] Hence, both pipes working together, fill the tank in 20 min.


You need to login to perform this action.
You will be redirected in 3 sec spinner