Choose the correct answer
Probability
Level
2
A cube is painted on all its surface and then cut into 216 small cubes of equal size. How many small cubes of equal size are not painted on any surface?
64
8
72
144
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
1 solution
Each side of the cube is cut into 6 equal parts to give 6 × 6 × 6 = 2 1 6 smaller cubes. All smaller cubes one layer inside, that is 4 × 4 × 4 = 6 4 are not painted on any of their faces.