I'd be grateful if someone could post it, I can't find it. It was something about a professor and two students being late to class, blaming it on a car accident. He gave them a make up test with two questions, one of them was which tire/wheel got damaged? Or something along those lines. Please refer if you know what I am talking about. Thanks.
closed as off topic by Gerry Myerson, J. M., Sasha, Davide Giraudo, Asaf Karagila Jul 30 '12 at 19:10
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I found this by googling for
The problem is incompletely specified; presumably a uniform distribution over the tires is implied.