Pipes And Cisterns
Everything on SkillVeris tagged Pipes And Cisterns — collected across the glossary, study notes, blog, and cheat sheets.
6 resources across 1 library
Interview Questions(6)
How to Solve Pipes and Cisterns Problems
Pipes and cisterns problems extend time-and-work: an inlet pipe fills at a positive rate (1/a of the tank per hour), an outlet pipe drains at a negative rate (…
How to Solve Cistern-with-a-Leak Problems
A leak is treated as negative work: if a pipe fills a cistern in 'a' hours and a leak alone would empty it in 'b' hours, their combined one-hour effect is 1/a…
How to Solve Pipes Opened Alternately Problems
When pipes fill a cistern on alternating turns rather than simultaneously, find the total work done in one complete cycle of turns, then determine how many ful…
How to Solve Pipes and Cisterns Problems with an Outlet
Treat every inlet pipe as a positive rate and every outlet (leak) as a negative rate in “tank per hour” units, add all the signed rates together, then invert t…
How to Solve Mixed Fill-and-Empty Pipe Problems Opened in Stages
Break the timeline into stages based on when each pipe is opened or closed, compute the net signed rate active during each stage, find how much of the tank fil…
How to Solve Combined Time, Work and Pipes Problems
Combined work-rate problems are solved by converting every worker or pipe into a fraction of the job done per unit time, then adding those rates directly — nev…