The Final Exam

At Wollongong University, there were four students taking chemistry

and all of them had an 'A' so far. These four friends were so

confident that the weekend before finals, they decided to go to Sydney

and visit some friends and have a big party. They had a great time

but, after all the partying, they slept all day Sunday and didn't make

it back to the Uni until late Monday morning.

Rather than taking the final then, they decided that after the final

they would explain to their Professor why they missed it. They said

that they visited friends but on the way back they had a flat tire and

found there was no spare in the car. As a result, they missed the

final.

The Professor agreed they could make up the final the next day. The

guys were excited and relieved. They studied that night for the exam.

The next day the Professor placed them in separate rooms and gave

them a test booklet. They quickly answered the first problem worth 5

points. Cool, they thought!

Each one in separate rooms, thought this was going to be easy ...

then they turned the page.

On the second page was written...

For 95 points: Which tire went flat?