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DASHCAT4 -- DILR Q.33...why are we considering only the cubes in the surface..in question it has asked for all the cubes that means we should consider all the 343 cubes.
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Answer
Hi Anwesh, question asks for "If all the single face painted unit cubes". Thus, out of all the cubes, we must consider only the ones that have a single painted face and only the surface cubes are painted. Thus, we have to consider only the surface cubes.
