Sorry for the delay in response; we've been short-staffed here.
760 is an extraordinarily high score - I can't tell anyone "Oh, just do this and you'll get a 760." :) So I'll tell you some things, but there's no way to say that you just need this much time or you just need to do these things to hit that score.
Read this article:
http://www.manhattangmat.com/articles/7 ... erence.cfmAfter you've read it, you'll have a pretty good idea why it's so hard to go from 700 or so to 760. You may be able to get there, but you can't know ahead of time how much time it will take - it could take quite some time.
Is there a particular reason you're going for such a high score? The only school out there that requires a 760 is... MGMAT. :)
Seriously, the GMAT is what we call a "threshold" issue for admissions. You have to hit a certain threshold to be considered (maybe one school wants you to have at least a 650, for example). But the schools don't decide to admit you based primarily on your GMAT score - they use other parts of your application to decide whether to admit you.
Have you been taking your practice tests under 100% official conditions, including essays, length of breaks, etc? If not, then your score might be inflated (particularly if you skipped the essays - that makes the test an hour shorter!). If you haven't been doing things under 100% official conditions, make sure you are from now on.
The next thing to do is to analyze your most recent CAT using this article:
http://www.manhattangmat.com/blog/index ... ice-tests/That will help you figure out where you're falling short and what you need to do, along with the general goal of learning how to recognize things (as discussed in that 700 --> 760 article). If you'd like, you can post your test analysis here and we can then give you more detailed advice about what to do.