How many cubes have at least one green face?

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Solution

The correct option is D 25
As per the problem, the cube is divided into 125 equal small cubes. That means, the cube is being cut into 5 slices horizontally and vertically resulting in 5x(5x5) smaller cubes.
Since, one face is completely green. Therefore, total number of cubes with atleast one green face would be 5 x 5 = 25. Hence, correct answer is (D).

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