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Paint it black (Posted on 2007-04-02) Difficulty: 3 of 5
Twenty-seven identical white cubes are assembled into a single cube, and the outside of that cube is painted black.

The cube is then disassembled and rebuilt randomly.

What is the probability that the outside of this cube is again completely black?

  Submitted by Federico Kereki    
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Solution: (Hide)
See the solution at Nick's Mathematical Puzzles.

Comments: ( You must be logged in to post comments.)
  Subject Author Date
AnswerK Sengupta2008-10-13 02:37:10
re(4): solutionmatt2007-04-05 14:36:37
re(3): solutionmatt2007-04-05 14:33:47
re(2): solutionCharlie2007-04-04 16:13:44
re: solutionmatt2007-04-04 14:09:17
re: Too big numbersCharlie2007-04-02 22:12:46
SolutionToo big numbersOld Original Oskar!2007-04-02 19:39:27
Not likelyJer2007-04-02 12:24:25
SolutionsolutionCharlie2007-04-02 12:11:14
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