Hi stockmarket7,
The 680 is approximately the 85th percentile - meaning that 85% of Test Takers either CAN'T or WON'T do what it takes to score at that level. I want to reiterate that given your limited study timeframe - and the fact that you're just beginning your studies - hitting that type of score by early January might not be likely. That having been said, you might not actually "need" a 680+, and Finance Programs tend to put a greater emphasis on an Applicant's Quant Scaled Score, so putting some extra effort into studying for that section would be a good use of your time. It's worth noting that the Quant section of the GMAT is NOT a 'math test' - it's a 'critical thinking test' that requires lots of little calculations as you work through it. To score at a much higher level in this section, you need to become more of a 'strategist' and less of a 'mathematician.'
When it comes to studying for the GMAT, there are a variety of different options. Most GMAT Companies offer some type of free materials (practice problems, Trial Accounts, videos, etc.) that you can use to 'test out' a product before you buy it. We have a variety of those resources at our website (
www.empowergmat.com). I suggest that you take advantage of all of them then choose the one that best matches your personality, timeline and budget.
With the EMPOWERgmat Course, you could start the 1-Month Study Plan; while you might not finish it all in that timeframe, you would still have the opportunity to learn and practice the major Quant and Verbal Tactics - so if you are a flexible-enough thinker to incorporate all of those ideas into how you 'respond' to the GMAT, then you could pick up some significant points (even in a short period of time). If you have any additional questions, then just let me know.
GMAT assassins aren't born, they're made,
Rich