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The six faces of a cube are painted black.  The cube is then cut into $3^3$ smaller cubes, all the same size.  How many of the smaller cubes do not have any black faces?

 Dec 20, 2023
 #1
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The number of cubes that have no blacl paint on their faces =  (3-2) (3-2) (3-2) =  1 * 1 * 1  = 1

 

cool cool cool

 Dec 20, 2023

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