Below please find an article by Chris Ryan about how to study for the GMAT in a hurry in a structured way.  Some of the tips may be useful even to those who have a little bit more of a runway .

How to Prepare for the GMAT in 14 Days (If You Absolutely Must)

by Chris Ryan, Director of Instructor and Product Development, ManhattanGMAT

You are under the gun. Maybe you’re on a waitlist, and the school wants a retake. Or you really need to apply this round, and you’ve been putting off the GMAT “ but now you’re facing the music.

How do you prepare to take the GMAT in just 2 weeks?

Let me clearly state that more time would be better. You can’t just cram for the GMAT, because you’re not just learning facts; you’re learning skills, and skills take time. I do believe that you can quickly cram in a lot of material, but ideally, you’d have substantial recovery time (just as your muscles need, after a workout) to absorb and to practice, so that the material becomes your own.

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