The Ultimate GMAT Guide to Integer Properties


Integers are one of the key recurring elements on the GMAT Quant section, so if you’ve started studying, you probably have some questions. What is an integer? Is zero an integer? What does it mean if integers are consecutive?

The good news is, you’ve almost certainly learned everything you need to know about working with integers in middle and early high school math. The bad news is that these rules and properties have probably been relegated to dusty, moss-ridden corner of your brain—and even if they haven’t, you’re going to have to apply them in novel ways on the exam.

Luckily, you’ve come to the right place! In this post, we’ll tell you everything you need to know about integers for the GMAT. We’ll give you a refresher on all the relevant rules and properties of integers, tips and tricks for every kind of integer question you’ll see on the GMAT, and some example questions with thorough explanations so you can see these strategies in action.

Continue reading “The Ultimate GMAT Guide to Integer Properties”

GMAT Rate Problems: How to Conquer All 3 Types

stopwatch-259375__340Two cars bound for the same GMAT test center leave their houses at the exact same time. Car A travels 30 miles per hour; Car B travels 20 miles per hour. Car A has to travel 20 miles. Car B has to travel 15 miles. Which car will arrive first?

If you couldn’t already tell, we’re going to focus on rate problems in this article!

There are a number of different types of rate problems that you’ll see on the GMAT. (Don’t worry – they’ll all make much more sense than the silly examples I provided above.) In this article, I’ll explain what rate problems are, give you the formulas and equations you need to solve the three most common kinds of rate problems on the GMAT, and give you tips on how to practice for GMAT rate problems.

By the end of this article, you’ll have everything you need to start tackling your GMAT questions at a faster and more accurate rate!

Get it?

Continue reading “GMAT Rate Problems: How to Conquer All 3 Types”

4 Key Rules for GMAT Probability Questions

Does it seem like you're rolling the dice every time you answer a probability question? Read on for some simple tips that will help you feel more confident.

If Hayley studies for five hours a day for 30 days leading up to the GMAT, what’s the probability that she’ll meet her goal GMAT score?

While you won’t see a question exactly like that on the GMAT, you’ll encounter a number of probability questions on the quantitative section of the GMAT. Many GMAT test-takers are intimidated by probability questions, but if that’s you, don’t worry! In this guide, I’ll teach you everything you need to know to conquer probability on the GMAT.

First, I’ll walk you through the four essential GMAT probability rules you’ll need to answer every probability question. Then, I’ll offer several other tips for acing probability questions. Next, I’ll walk you through four sample GMAT probability questions with explanations. Finally, I’ll give you some tips on practicing for probability questions. What’s the probability that you’ll ace  probability GMAT questions after reading this guide? Pretty high, I’d say.

Continue reading “4 Key Rules for GMAT Probability Questions”