2009 AMC 10B Problems/Problem 25
Revision as of 14:23, 26 February 2009 by VelaDabant (talk | contribs) (New page: == Problem == Each face of a cube is given a single narrow stripe painted from the center of one edge to the center of the opposite edge. The choice of the edge pairing is made at random ...)
Problem
Each face of a cube is given a single narrow stripe painted from the center of one edge to the center of the opposite edge. The choice of the edge pairing is made at random and independently for each face. What is the probability that there is a continuous stripe encircling the cube?
Solution
. The answer is 
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