Built a large cube from cubes the large cube had 3 small cubes along each edge he painted the 6 faces of the large cube then he took it apart so it was broken up into small cubes how many cubes paint?

Answer 1

All the little cubes except the one at the middle will have 1, 2 or 3 faces with paint on them, ie 26 of them will have some paint on them:

0 faces painted - 1 cube

1 face painted - 6 cubes (the centre ones of each side)

2 faces painted - 12 cubes (the ones in the centre of where two sides meet)

3 faces painted - 8 cubes (the ones in the corners).