A cube of size 512 m³ is coloured black on 2 opposite sides. It is then cut into 512 equal sized pieces. Find how many such cubes are there with one side painted?
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Divided into 512 equally big cubes, right? OK. So 8 x 8 x 8. That means we have 8 x 8 = 64 minicube-sides painted on each face of the original cube that has 6 faces. So, 6 x 64 = 384 painted sides
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