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A solid cube of 4 inches has been painted red, green and black on pair of opposite faces. It has been cut into one inch cubes. How many cubes have only one face painted?
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- 4
- 8
- 16
- 24
Correct Option: D
As per the given all information in question , we can say that
In Layers 1 and 4 the four cubes each in the centre have only one face painted. In Layers 2 and 3, eight cubes each in the centre have one face painted .
Thus, total number of cubes = 8 + 16 = 24
