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Archive | Work Rate

Using Diagrams to Solve GMAT Rate Problems: Part 1

Diagrams are great! Like all types of scratch-work, diagrams can forestall cognitive fatigue because working a problem out on paper is much less demanding than doing all the work in your head. Diagrams can also help you to visualize relationships, and can make problems more concrete. Generally though, we use diagrams to generate equations, which […]

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GMAT Work Rate Problems

First of all, consider these three GMAT like questions.  Try them on your own before reading the post.  I will show solutions to these practice questions at the end of this post. 1) Running at the same rate, 8 identical machines can produce 560 paperclips a minute.  At this rate, how many paperclips could 20 […]

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Breakdown of GMAT Quant Concepts by Frequency

Magoosh’s very own Mike McGarry, GMAT/Math Teacher/Tutor/Foosball player extraordinaire, went through 5 different sets of Official GMAT Practice Material and tallied questions based on the subject material they tested to find the most common GMAT questions. Here are the samples of Official Material he used to figure out the GMAT Quant breakdown: 1.GMAT Official Guide […]

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