A cube of 3 units is painted on all sides. If this cube is divided into cubes of 1unit, How many cube have none of their faces painted?
a)3 b)2 c)1 d)0 e)none of these

• Total num of unit cube be 3*3*3=27
  All side are painted
  Unpainted cube be (3-2)*(3-2)*(3-2)=1
  Answer is 1
  
  
  
• 12 years agoHelpfull: Yes(8) No(1)