Example 8: Painted cube face centers
Last Updated On: Sun Sep 06 2026Given Data
- A cube is painted on all six outer faces and divided into 6 x 6 x 6 equal cubes.
Question
How many small cubes have exactly one face painted?
Answer
96.
Solution
- Cubes with one painted face lie inside the six large faces, away from edges.
- Each face contains (6 - 2)^2 = 16 such cubes.
- 6 x 16 = 96.