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Challenging GMAT Problems with Exponents and Roots

Here are twelve challenging problems related to the topic of exponents & roots.  Remember, no calculator. (A) 17 (B) 19 (C) 21 (D) 23 (E) 27 4) Rank the following quantities in order, from smallest to biggest. (A) I, II, III (B) I, III, II (C) II, I, III (D) III, I, II (E) III, […]

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GMAT Practice Problems on Motion

Here are five practice questions.  Remember: no calculator. 1) A car, moving at a constant speed, covers 100 m in 5 seconds.  What is the car’s speed in km/hr? (1 km = 1000 m) 20 km/hr 54 km/hr 60 km/hr 72 km/hr 90 km/hr 2) Frank and Georgia started traveling from A to B at […]

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GMAT Practice Problems: Sequences

Here are eight practice problems on Sequences. 14, 23, 32, 41, 50, 59, … 1) In the sequence above, each term is 9 more than the previous term.  What is the 41st term of the sequence? 360 365 369 374 383 2) What is the difference between the fourth and third terms of the sequence […]

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GMAT Tuesdays with Kevin: Comparing Fractions

UPDATE: We replaced the old GMAT Tuesday in this post with a new video because one of our readers spotted an error and brought it up to us–thank you, Rose! Hello! Today, it’s fraction time! I am answering a question that one of your fellow GMAT-studiers asked about comparing fractions. Watch the video to learn […]

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GMAT Practice Problems: Sets

Here are four reasonably challenging problems about sets. 1) At a certain school of 200 students, the students can study French, Spanish, both or neither. Just as many study both as study neither.  One quarter of those who study Spanish also study French.  The total number who study French is 10 fewer than those who […]

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GMAT Practice Word Problems

The GMAT Quant section loves word problems.  Here are six problems of six different genres, easy to medium difficulty.   1) Sam’s car was fined when he gave Joe and Peter a ride, so they decided to help Sam pay the fine.  Joe paid $3 more than 1/4 of the fine and Peter paid $3 […]

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GMAT Tuesdays with Kevin: Problem Solving – Co-Prime

Hello! This week, we’re tackling the GMAT math through a question that a student brought up. At first, the problem seems like a plug-and-chug kind of problem. But with the help of a crucial insight, this problem can be solved much quicker! Watch the video to find out what that insight is. Here’s a still […]

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Rates and Ratios

Rates are just ratios.  Here are a four problems exploring rates.  Remember: no calculator! 1) Someone on a skateboard is traveling 12 miles per hour.  How many feet does she travel in 10 seconds?  (1 mile = 5280 feet) 60 88 120 176 264 2) At 12:00 noon, a machine, operating at a fixed rate, […]

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GMAT Tuesdays with Kevin: How to Make a Multiplier

Hello! There’s an easy and straightforward 3-step process to making multipliers, but that simple skill will come in very handy on the GMAT! This week, learn how this 3-step process and then put it to work on an actual problem. You can take a look at the final board work here: And, you can also […]

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Circle problems on the GMAT

Here are eight practice problems involving circles.  The difficulty of these problems ranges from medium to very challenging. 1) In the diagram above, O is the center of the circle and angle AOB = 144º.  What is the area of the circle? Statement #1: The area of sector AOB is 40% of the area of […]

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