Hi arjayitaroy,
I'm sorry to hear that Test Day did not turn out better. Getting a couple of hard Quant questions wrong would not have been enough to turn a Q50 into a Q46 though, so it's more likely that you got some mid-level questions wrong that you thought you had correctly answered (for example, in DS). There are also a number of factors that can impact your performance on an individual Exam, including the time you take the Test, how well-rested you are, the testing environment, etc. Before we discuss any of those potential issues, it would help if you could provide a bit more information on how you've been studying and your goals:
Studies:
1) When did you take your Official GMAT and how did you score (including the Quant and Verbal Scaled Scores)?
2) How long have you studied? How many hours do you typically study each week?
3) What study materials have you used so far? What “brands” of CATs/mocks have you used?
4) On what dates (or approximate dates) did you take EACH of your CATs/mocks and how did you score on EACH (including the Quant and Verbal Scaled Scores for EACH)?
Goals:
5) What is your overall goal score?
6) When are you planning to apply to Business School and what Schools are you planning to apply to?
If you took your GMAT at a Test Center, then you might also choose to purchase the Enhanced Score Report. While the ESR doesn’t provide a lot of information, there are usually a few data points that we can use to define what went wrong on Test Day (and what you should work on to score higher). If you purchase the ESR, then I'll be happy to analyze it for you.
GMAT assassins aren't born, they're made,
Rich