In the last two weeks, I took two official mba.com mocks (5&6),

It's truly the difficulty level of the question that matters, and not where the question shows up in your test. If question #2 on your test had been an 800-level question (which can happen sometimes), a wrong answer would barely hurt you at all. If question #2 (or question #27, it doesn't matter where you are in the test) is a 300-level question, a wrong answer will hurt you a lot, because high-level test takers almost never get 300-level questions wrong, so if you do, that's persuasive evidence that you aren't a high-level test taker.

The one reason question position matters is that your early answers in a test partly determine the questions you see later on. So if you get question #2 wrong *and* if question #2 is easy, then the algorithm will think you're not very high-level, until you give it a lot of evidence that you are. You can recover from one careless error on an easy question for sure, but if the algorithm thinks you're lower-level, and starts giving you mostly easier questions, then if you're prone to careless errors, you might make a second mistake on an easy question. Then you can end up in a situation that's difficult to recover from.

So I'd suggest being a bit more careful early in a test with questions you know how to solve. You don't want to run the risk of getting an easy question wrong early on. But if you see hard questions early in your test, which very often happens, don't worry about that at all. Don't invest huge amounts of time trying to get them right - if you're aiming for a Q50, you're supposed to get a lot of the Q51-level questions wrong (even when they show up at question #2 in the test), so that's not something to worry about.

The Exam Pack question database doesn't seem to contain a lot of hard questions. So if you're using those tests, I think you'll find each wrong answer hurts you more than you'd normally expect (because you're getting an easier question wrong most of the time). The real test isn't usually like that - most of the time, on the real test, if you're doing well you'll see a lot of hard questions, and then wrong answers or guesses don't hurt much.



I can't really give good advice about this type of thing without knowing how you've prepared. In general, the more you're relying on memorization, the more often you'll need to review. The more you're relying on actually understanding the math, the less often you'll need to review (once you truly understand something, you generally don't forget it). I think it's usually a good idea to do a complete survey of GMAT math, just by skimming through each topic and reminding yourself of the concepts and methods that are important, once every week or two. But that should not take much time. If you've learned the material well, you should be able to summarize all of those concepts and methods on five or six pages of notes, and it shouldn't take more than a half hour to go over. If your notes are substantially longer than that, then you've prepared differently for the test than I'd recommend, so I can't really say what you should do with your notes, because I'd need to know why they're so long.

All that said, if you're scoring at or above your target score most of the time on diagnostics, then your prep has been working, so you might not need to change anything (besides perhaps making some pacing adjustments to make careless errors less likely on easy questions). Good luck!

Dear sir, thank you so much for this elaborate response. There are sentences that I have read ten times because I felt they were so important. Thank you! I shall keep your words in mind. Just to let you know, I have been preparing for the GMAT for almost eight to nine months and the primary reason for that is the fact that I REALLY struggled with Quant. I totally sucked at it! Q29 wouldn't surprise me initially. Sir, from that stage, I have come to scoring at Q45+ level, as you know I scored a Q49 in my second last mock. So, it's been a battle in every sense of the word. Your words will really help me in my journey that hopefully will come to an end on October 7.