Answers

2014-06-23T15:39:05+05:30
The numbers of small cubes which have exactly one painted face is 8²=64 on each of the 6 faces, i.e. 64×6=384 cubes.  Also, the number of small cubes which have exactly two painted face is 8 on each of the 12 edges, i.e. 8×12=96 cubes.  Hence there are 384+96=480 cubes
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