PE internship interview - gmat + case analysis

Hey yall,

I recently applied to a training program at a MM PE firm. The internship is for recent college grads and those in their last semester. I got an email from the recruiters saying the first part of the hiring process will consist of a gmat-style exam and an investment case analysis.

What would be the best way to prepare for these? I have the M&I IBD Technical Interview packet but I don't know how helpful it will be with this. I am completely clueless on how to approach the gmat-styled test, and wondering if I should get some PE packet and start studying from there for the other part.

Any advice is really appreciated. Thanks