Posted by noman on .
A cube 4 cm on each side is painted blue and cut into 64 one cm cubes. How many one-cm cubes are painted blue on exactly two faces?
Cube Problem -
Those would be the cubes along the edges, but not the corners.
There are 12 edges, each with 2 non-corner cubes.
So, looks like 24 cubes with 2 blue sides.