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GMAT Question of the Week: Overlapping Sets

October 6, 2013 by

GMAT Grumpy Cat

Alright GMATers, it’s time for the next question of the week. As usual, we will leave the answer off until you have had the chance to chime in. Post your answers and how you got there in the comments below. You can also answer the question on Facebook if that is more your thing. Here it is…


Three hundred students at College Q study a foreign language. Of these, 110 of those students study French, and 170 study Spanish. If at least 90 students who study a foreign language at College Q study neither French nor Spanish, then the number of students who study Spanish but not French could be any number from

a) 10 to 40

b) 40 to 100

c) 60 to 100

d) 60 to 110

e) 70 to 110



Step 1: Analyze the Question 
Since students are split into two potentially overlapping sets—those … Read full post

Average Speed Problem Breakdown

September 10, 2013 by

GMAT Average Speed

Ok, let’s dive in and pull apart another GMAT problem type, average speed questions. Most of us have done a road trip at one time or another. Before we set out on the journey, we probably wanted to know some approximation of how long it would take. Google Maps does all of this for us now, even taking into account traffic. But before Google Maps, if we can take ourselves back that far, we had to do some calculations. In order to figure out how long the trip would take, we needed to know the distance and make some estimates about the speed at which we would be traveling. Then we would add some extra time to account for traffic and arrive at our answer.

But let’s think about how we’d figure out our average speed. To do this, let’s imagine that we were traveling between San Francisco and LA. … Read full post

Problem Dissection: GMAT Combinations and Permutations Part 1

June 18, 2013 by

iStock_000003401233XSmallWelcome back. As I mentioned before, each week we are going to feature a problem breakdown here on the blog. Last week we dove into probability. We’ll revisit that topic in the weeks to come. This week we are going to start moving into combinations and permutations. These can be some of the toughest problems on the test. However, since I can feel your pain on this topic, we are going to start slow. Instead of diving in, we’ll start by getting our big toe wet first, or maybe our little toe. For those who are at an advanced level on this topic, check back in a few weeks. We’ll be up to speed and breaking down some tough GMAT problems. For now, let’s use a problem to get a feel for how we handle these things.


Kim has four trophies, which she wishes to display in a … Read full post

Ignorance is Bliss (Well, sometimes) – GMAT Question

February 4, 2012 by

GMAT BlogI live in New York, so I do not spend very much time driving.  However, a couple weeks ago I was visiting my family out of state and I found myself behind the wheel.  Driving down a busy street at forty miles per hour, I had to watch for changing lights, for pedestrians and for other cars.  But what I found most remarkable, was what I did not even notice.  The color of the pavement, the trees lining the curb, and the birds flying through the air.

You are probably wondering what this could possibly have to do with the GMAT.  Just as I found the case to be when driving, on most GMAT problems we focus on all of the information we need, but, it is just as important to make sure that we ignore any superfluous information.

Most GMAT problems only give you the data you need … Read full post


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