Question

How many cubes are coloured red on one face and have the remaining faces uncoloured?

• A. 8
• B. 10
• C. 12
• D. 16

Answer 1

Answer: (D)

16

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.
Both the adjacent sides of red coloured face would be coloured. Therefore, all the corner cubes would be multi-coloured. Only, the middle cubes would have only red color. Hence, the correct answer would be 4 x 4 = 16.