I have a question: In the Open Water Final Exam (module 5), it is multiple choice out of 50 questions. How many do you need to get right to pass? Also if you fail, what happens? Does the Instructor explain the correct answers or do you take a re-test? Any Instructors that can tell me, or give me the PADI guidelines on the issue. I can't find answer on PADI website. This information is needed quite urgently. Thank you in advance.