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ratm
05-08-2007, 12:21 AM
we are given n+1 numbers from the set (1,2,..2n). prove that there are two numbers among them such that one divides the other

pka
05-08-2007, 09:03 AM
This question has been answered here:
http://www.freemathhelp.com/forum/viewtopic.php?t=22857