Basicly if you had any reasons besides I was drunk, I joined a frat, I was drunk because I joined a frat. The other way is also that you were stupid then and you have matured.
Any reason I give you is gonna be a canned reason, you may need to dig a little deeper and evaluate what is an excuse and what is a good reason.
I have a way lower GPA, so I'm probably more optimistic about your chances. I believe you really should focus on GMAT's because a low GPA and low GMAT would hurt.
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