Pipe and Cistern Questions PDF

Pipe and Cistern Questions PDF for Competitive Exams. Previous Year MCQs with Answer and Solution for SSC CGL, CHSL, Bank and all competitive exams.

Pipe and Cistern- Quantitative Aptitude

Pipe and Cistern topic questions are part of quantitative aptitude tests for competitive exams. It deals with the calculation of the time taken to fill or empty a tank or cistern when different pipes are used.

  1. Filling Rates: When pipes are used to fill a cistern or tank, each pipe has its own rate of filling.
  2. Emptying Rates: Similarly, pipes can also be used to empty a filled cistern or tank.
  3. Combined Rate: When multiple pipes are used simultaneously, either for filling or emptying, their rates can be added together if they work in the same direction (either all filling or all emptying). If they work in opposite directions (some filling, some emptying), their rates are subtracted.
  4. Time Calculation: Using the combined rate, one can calculate the time taken to fill or empty the cistern or tank.


  • A tap can empty a tank in one hour. A second tap can empty it in 30 minutes. If both the taps operate simultaneously, then how much time is needed to empty the tank?
  • A lead in the bottom of a tank can empty the full tank in 6 hours. An inlet pipe fills water at the rate of 4 litres a minute. When the tank is full, the inlet is opened and due to the leak the tank is empty in 8 hours. Find the capacity of the tank ?
  • A boy and girl together fill a cistern with water. The boy pours 4 litres of water every 3 minutes and the girl pours 3 litres every 4 minutes. How much time will it take to fill 100 litres of water in the cistern?
Pipe and Cistern Questions

Download : Pipe and Cistern Questions PDF

Topic : Pipe and Cistern Questions
Subject : Quantitative Aptitude
SSC Mathematics Previous Year Solved Problems
Useful for SSC CGL, CHSL, Bank Competitive exams
Medium : English
Number of pages : 11

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