These four friends were so confident that the weekend before
finals, they decided to go up to Dallas and party with some
friends up there. They had a great time. However, after
all the
partying, they slept all day Sunday and didn't make it back to
Austin until early Monday morning.
Rather than taking the final then, they decided to find their
professor after the final and explain to him why they missed it.
They explained that they had gone to Dallas for the weekend
with the plan to come back and study but, unfortunately, they
had a flat tire on the way back, didn't have a spare, and
couldn't get help for a long time. As a result, they missed the
final.
The Professor thought it over and then agreed they could make
up the final the following day. The guys were elated and
relieved.
They studied that night and went in the next day at the time
the professor had told them. He placed them in separate rooms
and handed each of them a test booklet, and told them to begin.
They looked at the first problem, worth 5 points. It was
something simple about free radical formation. "Cool," they
thought at the same time, each one in his
separate room. "This
is going to be easy."
Each finished the problem and then turned the page. On the
second page was written: (For 95 points):
Which tire?