Posted by Anjali Kaur on Dec 10, 2021
Pipes and Cisterns

Pipes and Cisterns

Pipes and cisterns are used to fill or empty some container or a tank.

Inlet (x) which fills in water

Outlet (y) which takes out water

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Important Formulas

  1. If an inlet pipe can fill a tank in x hours, then part of the tank filled by pipe in 1 hour = 1/x
  2. Outlet can empty the tank in 1 hour = 1/y
  3. If y > x, then time taken to fill the tank = xy/(y-x)
  4. If x > y, then time taken to empty the tank = xy/(x-y)
  5. Both can fill the tank = xy/(x+y)
  6. If 2 pipes fills and another empties then, time taken to fill the tank = 1/x + 1/y – 1/z

Thank You!

You can check the following posts related to applied mathematics:

  1. Logical Reasoning – Basics
  2. What are functions?
  3. What is probability?
  4. Relations and functions
  5. Sets and Venn diagram
  6. What are the different types of sets?
  7. Set theory

Happy Learning!

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