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almourabit 30-08-2007 03:59 AM

Probability puzzle 1
 
1 مرفق
Twenty-seven identical white cubes are assembled into a single cube, the outside of which is painted black. The cube is then disassembled and the smaller cubes thoroughly shuffled in a bag. A blindfolded man (who cannot feel the paint) reassembles the pieces into a cube. What is the probability that the outside of this cube is completely black?


الساعة الآن 02:54 PM.

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