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Question
How many cubes have at least one face painted blue?
How many cubes have at least one face painted blue?
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Solution
The correct option is D 32
Cubes having at least one face painted blue are those which lie the two surfaces painted blue Since each blue surface has 16 cubes so there are 16 x 2 = 32 such cubes
Cubes having at least one face painted blue are those which lie the two surfaces painted blue Since each blue surface has 16 cubes so there are 16 x 2 = 32 such cubes
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