A 3x3x3 inches cube is painted with yellow color on all the outer surfaces. If the cube is cut into smaller cubes of 1*1*1 inches. How many 1 inch cubes will have atleast one surface painted?

+1 vote

A 3x3x3 inches cube is painted with yellow color on all the outer surfaces. If the cube is cut into smaller cubes of 1*1*1 inches. How many 1 inch cubes will have atleast one surface painted?

...

question is minimum one side.