Just give the applications your best shot. Your chances are zero if you don't apply at all.
If you can, find a way to squeeze a few more points out of the GMAT. Sign up for a course (Kaplan
, Knewton, Veritas
, Manhattan GMAT
, etc.) as well as the wealth of resources on the GMAT here at GMAT Club. Hire a private tutor if need be.
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