How many cubes will have one face painted only in green?

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Solution

The correct option is C 2
Only 2 surfaces are green so we can neglect other 4.
Let's examine one surface.
again there are 9 boxes. and 8 of them will not have only green color.
So from each surface we get 1 box with only green color on it.
Therefore, the required answer is $2$
Hence, option 'B' is correct.

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