Aptitude::Pipes & Cistern
Important Formulas |
Inlet: A pipe connected with a tank or a cistern or a reservoir, that fills it, is known as an inlet.
Outlet: A pipe connected with a tank or cistern or reservoir, emptying it, is known as an outlet.
* If a pipe can fill a tank in x hours, then: part filled in 1 hour = 1/x
* If a pipe can empty a tank in y hours, then: part emptied in 1 hour = 1/y.
* If a pipe can fill a Tank/Cistern in x hours and another pipe can empty the full Tank/Cistern in y hours (where y > x),
Then on opening both the pipes, then the net part filled in 1 hour = (1/x -1/y).
* If a pipe can fill a Tank/Cistern in x hours and another pipe can empty the full Tank/Cistern in y hours (where x > y),
Then on opening both the pipes, then the net part emptied in 1 hour = (1/y - 1/x).