UPSC Civil Services 2017 Prelims General Studies Paper II

Question : 58 of 80

Marks: +1, -0

The outer surface of a 4 cm × 4 cm × 4 cm cube is painted completely in red. It is sliced parallel to the faces to yield sixty four 1cm × 1cm × 1cm small cubes. How many small cubes do not have painted faces?