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Archive | Quantitative

GMAT Quant: Rates and Ratios

What are rates and ratios? How do rate and ratios problems differ? Hint: Not that much. Original photo by Pierre Rougier In fact, rates are just ratios in disguise. Here are a four GMAT practice problems exploring rates and ratios.  Remember: no calculator! Rates and Ratios Practice Problems 1) Someone on a skateboard is traveling 12 miles […]

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Common GMAT Topic: Descriptive Statistics

Here’s a whirlwind tour of one of the most frequently tested sets of concepts on the GMAT Quantitative section: GMAT statistics. You don’t have to be an expert on statistics: a little goes a long way. Let’s learn some basic descriptive statistics formulas and go from there. Descriptive Statistics Formulas The Mean One very important GMAT […]

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Can You Use a Calculator on the GMAT?

Question: Can you use a calculator on the GMAT?  Are calculators of any kind permitted on the GMAT? No. No calculator is allowed on the GMAT Quantitative section. The only exception where you can use a calculator on the GMAT is the new Integrated Reasoning section, which has its own IR Calculator.  The IR is a special […]

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GMAT Diagnostic Test Recommendations

This blog article is to make study recommendations to folks who took the Magoosh GMAT Diagnostic Test.  For folks who took both the Quant Diagnostic and the Verbal Diagnostic, the recommendations here will fall into four buckets, according to your scores on the two diagnostic tests. 1) Group 1: Quant score 1-6; Verbal Score 1-6 […]

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GMAT Tuesday: “Must Be True” Math Questions

The very tricky and very nefarious “must be true” question type can foil the best math minds. Without practice, prep, and a good strategy, you might find yourself wasting a lot of time on these questions. Today I’ll cover a useful strategy for these questions and work through a problem in the Official Guide to […]

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