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  4. A cube having all of its sides painted is cut by two horizontal, two vertical and other two places so as to form 27 cubes all having the same dimensions. Of these cubes, a cube is selected at random. The total number of cubes having at least one of its sides painted is

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Q. A cube having all of its sides painted is cut by two horizontal, two vertical and other two places so as to form 27 cubes all having the same dimensions. Of these cubes, a cube is selected at random.
The total number of cubes having at least one of its sides painted is

Probability

Solution:

Correct answer is (d) 26