Question

A cube is coloured red on one face.green on opposite face.yellow on another face and blue on the adjecent face to the yellow face. The other two faces are uncoloured.it is then cut into 64 smaller pieces in same size.how many cube are uncoloured on all the faces.

Answer 1

16 pieces r ucolourd on all sides

Answer 2

For starters, the uncoloured cubes will be the ones inside and the ones on the uncoloured sides, excluding the borders. So, the inside ones are 2*2*2=8. The outside ones are 2*2+2*2+2=10. So, total uncoloured cubes are 10+8=18