“The secret is reps, reps, reps.” –Arnold Schwarzenegger Here’s a quick answer: NO, but sort of maybe sometimes if you look at it a certain way. There’s obviously a lot of interest in this topic, and I will tell you one true thing, even if it’s not what you expected: Repeating questions is the simplest, … Read More
GMAT Work and Rate problems might seem like a pain in the ass, but they don’t have to be. The fact that these questions look worse than they truly are just comes down to over-complicated methodology and dubious pedagogy. This little group of videos is here to teach you a new way to think about … Read More
“I looove your rates process. I think I finally understand it!” — Camila M The way you write your guides are brilliant! Your approach made things seem much clearer. Keep the good stuff coming! –Duc Anh T, 2017 Do you struggle with GMAT Rates questions? Let me guess: most GMAT questions seem OK, but you … Read More
Probability was initially developed for gambling. Given the gamblers I know, that means it can’t be particularly complicated. Why we base the global financial system on it is another question, but Quantum Mechanics uses it as well, so I’ll admit I’m being judgmental here. Looked at one way, Probability attempts to give us a mathematical … Read More
The 2016 Official Guide is not a major difference from the 11th, 12th, or 2015 editions. This is particularly true when it comes to difficult questions. However, certain things are noticeable over time. One of these trends has been in Combinatorics (you might think of this as Permutations and Combinations, but Combinatorics is a better … Read More
Hi GMATters, This is a guest blog post from our friend Mark Skoskiewicz of Chicago-based Test Prep service MyGuru. Want a full PDF of this guide? Click here: GMAT Math and the Importance of Strategy To excel on the GMAT, mastering core underlying mathematical concepts and skills is critical. The key to a 700+ … Read More
Hi GMATters, We’re all taught that “you need at least as many equations as you have variables.” In fact, that’s one of the first principles in a lot of GMAT texts. The simple fact that it’s in the damn GMAT books is almost undoubtedly why tricky DS questions love to punk you by having a … Read More
There are a few Quant topics on the GMAT that are much simpler than they seem. Learning these topics will boost the hell out of your GMAT prep. Factoring, Counting Problems (Permutations and Combinations), Probability, Mixtures, and Venn Diagrams round out the list. Unfortunately, Percents and Rate Problems will always be hard–and this is coming … Read More
It’s no surprise that there are a lot of overlapping sets or Venn Diagram questions on the GMAT. For many people it’s incredibly difficult to figure out whether to use a diagram, a table, or perhaps simple algebra. The answer to this might be best chalked up to “feel,” but there are actually good reasons … Read More
Combinatorics problems are feared mostly because no one teaches them properly in school. When you learn simple methods to break these questions down, you’ll find them some of the easiest questions on the GMAT! Strangely or not, there is an underlying logic to counting properly even if it’s not really what it would seem on … Read More
