The Ultimate Guide to GMAT Mixtures Questions Download this entire article in PDF form here! 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 … Read More
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
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
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
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
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
When do you try Smart Numbers with a GMAT Rates question? Hardly ever. Why? It just makes things twice as difficult. This question doesn’t need to take a long time to solve if you do it right, but as you’ll see, it’s not easy either way you cut it. The hard part, really, is to … Read More
How can you solve a GMAT Geometry question with no calculation? Simple: find one that’s based on spatial awareness. It’s just drawing loads and loads of pictures and you’ll get your answer! In this particular Geometry question, we see that you couldn’t really calculate even if you wanted to. Instead, this question requires two things: … Read More
When to answer by CONCEPT in GMAT Data Sufficiency questions… While it might be tempting to plug in numbers for most DS questions, here’s a case where you don’t really need to. In fact, plugging in might be counter-productive! It’s helpful to think about what a question is really asking and to work from there. … Read More
WTF are Relative Primes in GMAT Properties of Numbers? Learn more here… This is a slightly different approach from a normal video for me. This isn’t actually the solution to an Official Question as I normally do. This discusses a particular topic within Properties: Relative Primes. In a technical sense, the term “Relative Primes” means … Read More