I am wondering how most of you guys study. If you answered a questions right, do you just move to the next one or would you still read the explanation of how the bookmakers solved it to see how it compares to the way you solved it

You should read explanations on your correct practice problems... but, honestly, that takes a lot of time, and for me it didn't seem worth it. Generally the only time I reviewed a problem that I got correct was when I knew I struggled with the problem (got a little lucky with my answer choice or took a long time to get the correct answer).

Ideally, you should review every problem you do, and PraPon gave some great reasons why, but if you find that you don't have the time for it, don't stress too much.

I completely agree with both PraPon and bdepp: in a perfect world with unlimited study time, you definitely should squeeze every bit of knowledge you possibly can from every official question. In practice, that's probably impossible, and if you have a limited amount of time available (who doesn't?), try not to obsess too much over individual questions. At some point, you're better off challenging yourself with new questions than spending 20 minutes investigating a single problem.

One friendly word of caution about OG explanations: they aren't always very good, and they don't always offer the most efficient way to do each question. There are several ways to do most quant questions, and the OG usually publishes methods that are more algebraic and relatively easy to explain in print. Those explanations are absolutely worth a look, but take them with a grain of salt.

Have fun studying!
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I think the posts above are fairly accurate. In a perfect world you would like to read the explanations and derive something from a question (concept/trick/trap etc.), for every question you attempt.

You may skip them, if you are very confident in your approach (this generally happens with quant questions - because there is little grey area)
I forced myself to read explanations for verbal for each SC/RC question, irrespective of whether I got it right or wrong. Not so much for CR. For SC, I often found new things - there were more than 1/2 reasons because of which the author eliminated an incorrect sentence. I was a bit weak in RC, so thought it would be better to understand the shortest way to attack a problem. CR was pretty quant like for me - either I got it or I did not. If I struggled even a little, I moved back to the explanation.
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I ended up doing somehow what bb spoke about. In the books where the explanations are meant to teach you something new, like Kaplan, I would read them. While in the OG where the explanation is about the math for solving the problem, I would skip them, unless of course my answer was wrong.

Hi score780, I'm just a little unclear on one thing... You mean you don't have ∞ time to study the GMAT?!? Darn!

I totally get the notion of focusing on what you got wrong over what you got right. In fact, it's what I would do as well! It's just helpful to be aware that you may have gotten the right answer for the wrong reasons, made a lucky guess, or taken 3 minutes on a problem that can take 1 minute with a different strategy. I wholeheartedly agree that questions you got right (without guessing) in 2 minutes or less don't really need to be reviewed. There might be more value in learning a new technique to solve algebra questions quickly than trying to memorize the formula for the area of an equilateral triangle in case it might come up on the test (A = (s^2 \sqrt{3}) / 4 for those who are curious)

If I may draw on my own experience, however, it's not realistic to want to answer every single question accurately. There will be some topics at which you're great, and others you don't like as much. The goal is to maximize your overall score, so if you're able to get 100% of algebra problems right versus 90%, that's worth taking the time to do. I wasn't great at geometry when I took the exam 6 years ago (I'm much better now that I've been teaching it for years) but I'd get all the arithmetic and number properties right. So I probably missed a couple of the geometry problems, but I still got a fantastic score because I aced most of the other math subjects. Plus going from 90% to 100% in something you love will likely be easier and more engaging than going from 20% to 30% in something you hate.

As always, there is no one correct strategy for everyone. Whatever works for you is what you should do, but I found success on the GMAT came with perfecting my natural talents more than trying to be good at everything. Obviously working on your weaknesses is something natural (and something that every job interviewer you ever have will tell you to do), but working on your strengths can have the same overall effect on your score with less of a struggle. Again, if you have ∞ time... do both!

Hope this helps!
-Ron
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Ron Awad
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Excellent article, thank you