Another Joke

Four seminary students were doing so well on all the quizzes, midterms and papers that each had an A so far for the semester.
They were so confident that the weekend before finals, they decided to go party with some friends at the beach. They had a great time. However, after all the hard partying, they overslept and missed the exam.
They decided to ask their professor for a makeup exam. They explained that they had been studying for the exam all weekend, but had had a flat tire on the way back and hadn't had a spare.
"Okay," said the professor. "Come back tomorrow and I'll have a makeup exam ready."
The next day, he placed them in separate rooms, handed each of them a test booklet and told them to begin.
The first problem, worth five points, was something simple about transubstantiation. "Cool," each student thought in his separate room. "This is going to be easy." Each finished the problem, then turned the page and read:
"Question 2, for 95 points: Which tire?"