All the faces of cubes are painted with blue colour. The cubes are then cut into 216 equal small cubes. Then how many small cubes are there whose two faces are coloured blue?
1
54
2
64
3
48
4
36
All the faces of cubes are painted with blue colour. The cubes are then cut into 216 equal small cubes. Then how many small cubes are there whose two faces are coloured blue?