Difference between revisions of "2005 AIME I Problems/Problem 5"

 
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== Solution ==
 
== Solution ==
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{{solution}}
  
 
== See also ==
 
== See also ==
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* [[2005 AIME I Problems/Problem 4 | Previous problem]]
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* [[2005 AIME I Problems/Problem 6 | Next problem]]
 
* [[2005 AIME I Problems]]
 
* [[2005 AIME I Problems]]
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[[Category:Intermediate Combinatorics Problems]]

Revision as of 17:58, 17 January 2007

Problem

Robert has 4 indistinguishable gold coins and 4 indistinguishable silver coins. Each coin has an engraving of one face on one side, but not on the other. He wants to stack the eight coins on a table into a single stack so that no two adjacent coins are face to face. Find the number of possible distunguishable arrangements of the 8 coins.

Solution

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See also