In a group of students, 50 speak English, 50 speak French and 50 speak
Spanish. Some students speak more than one language. Prove it is
possible to divide the students into 5 groups (not necessarily equal),
so that in each group 10 speak English, 10 speak French and 10 speak
Spanish.
(In reply to
re(2): Solution (yes, too informal) by Penny)
How many times do I have to say it? It wasn't a counterexample for this problem, but to a different problem, to which I think Nikki's proof would apply, thus invalidating her proof. It does not in any way invalidate all proofs.
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Posted by Tristan
on 2004-11-13 17:14:30 |
re(3): Solution (yes, too informal)
