Time And Work
Everything on SkillVeris tagged Time And Work — collected across the glossary, study notes, blog, and cheat sheets.
8 resources across 1 library
Interview Questions(8)
How to Solve Time and Work Problems
Time and work problems are solved by converting each worker’s output into a rate (work done per unit time), adding rates when workers combine, and using total…
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 Work, Efficiency and Wages Problems
Efficiency is inversely proportional to time taken alone, so a worker who finishes a job in fewer days has proportionally higher one-day work, and when the job…
How to Solve Chain Rule (Compound Proportion) Problems
The chain rule solves compound proportion problems — where an unknown depends on several varying quantities at once — by setting each quantity’s ratio as direc…
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 Work-and-Wages Sharing with Partial Participation
When workers join or leave partway through a job, or contribute unequal days, wages are shared strictly by the actual fraction of total work each person comple…
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…