Thanks for the answer, Eric!

I had really included 15 minutes to draw contrast with 2 seconds. I have actually had the opposite time management problem where I realize that I have 10 minutes to finish 10 problems. Your words on pacing are much appreciated.

In his defense, Eric, he did say that he would get 35 right...I'd take that on either section, regardless of timing!

Kidding aside, since you're talking about pacing, I'll echo Eric's point that pacing is a huge key to success on the GMAT. There are a few ways that I recommend that you pick up the pace:

1) Most problem solving seconds lost come within the first 30-40 seconds of looking at a question. See if you can have more value to show for your first 30 seconds on each question by actively reading the problem. Assign variables, turn sentences into equations or mathematical relationships, etc. while you read. If you read the question first, then go back to get started, you don't have much to show for that initial read, and you may not be all that focused the first time through, either. Just the process of turning the test's words into your calculations can save a healthy 15-20 seconds on each of several problems.

2) The answer choices can guide you, as well - take a peek at the answer choices before you start making calculations, as you may find the possibility to make an estimate or use a number property to avoid making extensive calculations. This can also save you a fair amount of time on multiple questions, adding to your overall bank of time.

3) Return to your practice tests to see if you can find patterns in the types of questions on which you spend more than 2 minutes (the average amount of time for a quant question). If it seems as though a certain type of math slows you down, you can then drill those concepts to increase your speed while performing operations or recognizing concepts.

It doesn't sound like you have too far to go to get your pacing just about perfect - if you're around 10 minutes left for 10 questions, an extra 7-10 minutes would do wonders for you. Getting an extra 15-20 seconds per question will do the trick, so you're well on pace to perfect your pacing!