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Question
How many smaller cubes have at least one of their faces painted silver?
How many smaller cubes have at least one of their faces painted silver?
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Solution
The correct option is C 8
The opposite faces of the original cube are of the same colour. Thus, there are two opposite faces on the original cube which are coloured silver. There are four smaller cubes on each face. Hence, all the 8 cubes have silver colour on at least one of their faces.
There are 8 smaller cubes at 8 corners. All these smaller cubes are coloured on three of their faces with different colours.
The opposite faces of the original cube are of the same colour. Thus, there are two opposite faces on the original cube which are coloured silver. There are four smaller cubes on each face. Hence, all the 8 cubes have silver colour on at least one of their faces.
There are 8 smaller cubes at 8 corners. All these smaller cubes are coloured on three of their faces with different colours.
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