Would You Study?

This sunday I'll be taking our exam in Medical-Surgical nursing. It's expected to be a hard exam but the catch is, the professor promised a round trip ticket to the US to anyone who gets at least 80% in the exams. Now that's a lot of money over here. So i guess it means that the exams will be really hard and won't be in the lectures he's given.

Would you still study for it?