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Strange combinatorics

  1. Aug 12, 2007 #1
    given 17 coins. a coin can either be red, blue or yellow. show there exists a three coins all of which are the same color.
     
  2. jcsd
  3. Aug 12, 2007 #2

    mathman

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    Once you have more than 6 coins then there has to be at least 3 of the same color. There must be more to the problem that you are looking at.
     
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