Problem #91

Be careful!: Mega Box
Public 07/07/12 2xp Math 49.1%

We have a mega box composed of small cubes attached together. The box is a 3d rectangular shape in that each dimension includes 9,10,11 cubes respectively.(9x10x11 cubes included) We paint the whole surface of this box to red. The question is that how many cubes will not be painted at all?



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