## GMAT Combinatorics — Ultimate Guide to GMAT Permutations and Combinations

Introduction At the risk of blowing all the secrets too early, let’s do this at the beginning. If you can answer three Core Questions, you’ll be able to answer any Combinatorics question that the GMAT decides to throw at you. Here they are: How Many Spaces? How Many Choices? Does Order Matter? Figuring out the … Read More

## The Ultimate Guide to GMAT Mixtures Questions

The Ultimate Guide to GMAT Mixtures Questions The beauty of Mixtures questions is that they are relatively simple once we get a couple of simple concepts straight. One nice thing about Mixture questions is that they are best learned through example, so let’s jump right in.  Let’s take a hypothetical case where we have a … Read More

## The Basic GMAT Probability Equations — A Short Guide

The Basic GMAT Probability Equations First, we need to establish some sort of general definition for the term Probability itself. You’ll most often hear Probability defined as some variant of: desired outcomes / total outcomes First things first: Probability is always a fraction, which, of course, could also be a percent (because these two statements, … Read More

## Bias and Fallacy: GMAT Critical Reasoning Strategy, Part II

GMAT Critical Reasoning Strategy Part II: Biases and Fallacies (or Yes, You Are Wrong About That) What we have previously considered is what might be called the “models” that we can use to think properly, but just as important is to realize that we are hopelessly irrational creatures with a lot of bullshit programmed into … Read More

## Independent vs. Dependent in GMAT Probability — What is the Difference?

Independent vs. Dependent Probability in GMAT Probability Questions — What is the Difference? It would be really easy to dive into a thoroughly flummoxing explanation of the difference between Independent and Dependent Probabilities, but I’ll spare you that. In other words, a technical proof of this is somewhat mind-bending, so we’ll leave it here with … Read More

## I Hate the GMAT Part II: Frustration and Shame

I hate the GMAT because it is built to be frustrating. (Among other reasons, of course!) Start with contempt. If you get frustrated enough, the GMAT wins. While it’s nice to really enjoy something and pursue everything “for the love,” let’s be honest–that’s bullshit.  At least at the beginning. Let’s start with a little story… … Read More

## Move Your GMAT Score from the 600s to the 700s.

If your GMAT Score is stuck in the 600s, there’s probably a good reason. And that reason is technique. What is it that the 700+ scorers do that’s so different? One key thing is that they don’t waste time on unnecessary Arithmetic. Rather, knowing the multiplication tables and fraction-decimal equivalents cold plus understanding quick ways … Read More

## Possessive Antecedent in GMAT Sentence Correction

Is it even possible to use Possessive Antecedent on the GMAT? This is an interesting topic that recently came up on Reddit. So… can you use a possessive antecedent on GMAT? Short answer: YES, but try doing it sparingly. It’s not good writing or good practice. By the way, if you don’t know what a … Read More

## VERY Difficult GMAT Properties of Numbers Question (with Relative Primes!)

Relative Primes in GMAT Properties of Numbers questions. Scary stuff! I’m sure you’re here not for the explanation but for the video. With that in mind, let’s keep this short: This GMAT Properties of Numbers question itself is bit of a logical nightmare. If you’re not really going for 700+, I’d advise just skipping it … Read More

## Are They Trying to Trick Me Here? How to Tell When GMAT Quant Gets Nasty.

How do you know that a GMAT Quant question is tricking you? Read on… Of course the GMAT is trying to trick you. That’s the whole point. You probably thought you’d learn some “tricks” and be able to get a 700+. Excuse my giggling. No, that’s just GMAT Quant tricking you, I’m afraid. Like an … Read More