A cube is painted blue on all faces and then cut into 125 cubes of equal size. How many cubes are painted on one face only?
Answer & explanation
Correct answer: option 2
The cube is cut into 125 small cubes.
Here, n = 5
Number of cubes will have one faces painted = (n - 2)2 × 6 = (5 - 2)2 × 6 = 54