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Welcome to part two of a three-part series on common mistakes that students make when answering GMAT Data Sufficiency questions. In this article, we’ll examine mistakes related to assumptions about number … Read More

Welcome to part one of a three-part series on common mistakes that students make when answering Data Sufficiency questions. In this article, we’ll examine two kinds of mistakes that GMAT newcomers often make, and in … Read More

Many GMAT questions involving percent require us (at some point) to convert a fraction to a percent. In this article, we’ll examine some techniques to consider when making these conversions. To set this up, let’s say … Read More

At some point during your high school years, your math teacher may have presented you with the following “proof” that 1 + 1 = 1. See if you can spot the problem. Begin with the premise that Multiply both sides by b … Read More

To set up this article, please try the following test: For the next 10 seconds, do NOT think about a bear wearing a dress while riding a unicycle into a pool filled with Superbowl rings. How did you do? If you passed … Read More

Try this one: What is the units digit of ? A) 1 B) 3 C) 5 D) 7 E) 9 Let’s begin by looking for a pattern as we increase the exponent. = 13 (units digit is 3) = 169 (units digit is 9) = 2197 (units digit is 7) Aside: As … Read More

In this article, we’ll examine some strategies for avoiding careless mistakes on the GMAT. My primary focus will be on minimizing errors in the Quantitative section of the test, but some of the strategies can be … Read More

In this article, we’ll examine a guessing strategy to consider when tackling advanced Data Sufficiency questions. To set this up, let’s assume that I’m working on a Data Sufficiency question, and I examine … Read More

When it comes to getting a great score on the GMAT, knowing how to answer the questions is only one piece of the puzzle. You also need to know how to optimize the conditions needed to achieve that great score. So, here … Read More

In a previous article (Junior Girls Volleyball and Scoring Big on the GMAT), I discussed the importance of having (or even faking) a positive attitude when writing the GMAT. In this article, I’ll suggest some more … Read More

The “I Just Beat the GMAT” (IJBTG) forum (http://www.beatthegmat.com/i-just-beat-the-gmat-f15.html) is very popular, and you don’t need a degree in psychology to understand why. There are two basic groups of people … Read More

Try answering the following GMAT-style question in under 2 minutes: Set K contains every multiple of 6 from 18 to 306 inclusive. If w is the median of set K, and x is the average (arithmetic mean) of set K, what is the … Read More

Consider the following: Scenario 1. While hiking alone in a remote area, you inadvertently step into some quicksand. Within seconds, you’re up to your waist. What do you do? Scenario 2. During your GMAT practice tests, … Read More

When it comes to scoring questions on the Integrated Reasoning section, the GMAC’s policy on partial credit is pretty tough. In this brief video lesson, we’ll use this policy to help us maximize our score and help us … Read More