2011 AIME II Problems/Problem 12

Revision as of 11:39, 31 March 2011 by Joelinia (talk | contribs)


Nine delegates, three each from three different countries, randomly select chairs at a round table that seats nine people. Let the probability that each delegate sits next to at least one delegate from another country be m/n where m and n are relatively prime positive integers. Find m+n.

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