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Work rate problems describe how quickly a task is completed when one or more agents contribute, linking the amount of work done to the time and speed of each contributor. They help build a clear understanding of how combined or individual efforts translate into total output. Careful study of this topic is an essential part of any comprehensive GMAT preparation course. This page offers you an organized subtopic wise playlist, along with a few worked examples, for efficient preparation of this concept.
Work and time questions are among the most traditional problem types in aptitude tests, including the GMAT. They are straightforward, but they call for a clear, structured method if you wish to solve them quickly and correctly. One of the most practical approaches during your GMAT prep is to treat the entire task as one complete unit and then determine what fraction of that work each person finishes in a given period. The following short video clarifies and explains this approach, shows it solving problems, and helps you apply it to GMAT drills, sectional tests, and full-length GMAT mock tests.
Work rate questions are among the most practical and intuitive problem types on the GMAT. They check your ability to break a situation into simple pieces and determine how long a task will take when several people or teams are involved. In your GMAT preparation, the central idea is to define the total work in terms of man hours or man days, depending on how the question is framed. This lets you convert the efforts of men, women, or groups with different efficiencies into one common measure. For instance, if 10 men working 12 hours a day can finish a job in 20 days, the total effort can be written as 10 × 20 × 12 man hours. Any new combination of workers must match this same total work. The short video below captures this idea clearly and illustrates how it can show up in GMAT questions.
Many GMAT work problems involve actions that either contribute to progress or cancel it out. Think of forward actions as positive work and reversing actions as negative work, and then combine these signed rates in a single unit, such as jobs per minute or jobs per hour. Developing this habit during your GMAT preparation protects you from algebra that looks correct but carries the wrong sign. The same idea extends well beyond tank problems to situations with workers joining or leaving, rework cutting into production, maintenance pausing output, or tasks that are already partly finished. For partial work, adjust for the remaining fraction and apply the same signed rate approach. Always keep one consistent time base. The following short video outlines this idea in simple language and shows how it can be tested on the GMAT.
High quality Work-Rate questions are not available in large numbers. Among the limited, genuinely strong sources are the official practice materials released by GMAC and the Experts’ Global GMAT course. Within the Experts’ Global GMAT online preparation course, every Work-Rate problem appears on an exact GMAT like user interface that includes all the real exam tools and features. You work through more than 40 Work-Rate questions in quizzes and also take 15 full-length GMAT mock tests that include several Work-Rate questions in roughly the same spread and proportion in which they appear on the actual GMAT.
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