Yeah, I was wondering the same thing. My best guess is that the question is mistranscribed, and the orginal version was something inspired by the birthday para

Yeah, I was wondering the same thing. My best guess is that the question is mistranscribed, and the orginal version was something inspired by the birthday paradox (http://en.wikipedia.org/wiki/Birthday_paradox http://en.wikipedia.org/wiki/Birthday_paradox).