Improve from Q48/49 to Q50/51

Funny you should ask, sauravskumar. There was just a GMAT Club live stream on YouTube yesterday that addressed this very topic. I will say this, based on what I have read among tutors and students who have reached such a height in Quant--they tend to go about it in whichever way suits them best, but they all put in a lot of hard work on high-quality questions. To be specific, some people seek out printed material, such as the Manhattan Prep GMAT Advanced Quant book; some like online module learning (programs include those by Math Revolution, EMPOWERgmat, or Target Test Prep); some work on harder-than-the-real-thing questions from GMAT Club quizzes and tests; and some combine approaches. What is important is that, however you go about it, you get better and better at increasing your conceptual knowledge while reducing your errors on practice questions and mocks. The GMAT™ is designed to expose weaknesses over those 31 questions, so you cannot simply hope to duck and dodge to get lucky and walk away with a perfect score. You have to earn it, and consistency is key. If you take a mock and hit a 51, great, but until you can do that two or three times, the reliability of that score would be lower, not to mention that there are test-day factors to consider, such as the testing center experience, wanting to be careful to avoid making mistakes, keeping an eye on the clock...

If you are strong at Quant but need that extra boost, then why not explore one or more of the options I have outlined above? It is a tough task, but evidently one that 4 out of every 100 test-takers can achieve on average.

Good luck, however you decide to go about your studies.

- Andrew