A solid cube is painted black on two of its opposite faces and is cut into 343 equal pieces. How many small pieces have no paint?

• Out of 343 pieces, 49 pieces of one face and 49 pieces of opposite face are painted.
  balance 343-49-49= 245 have no paint.
• 12 years agoHelpfull: Yes(4) No(2)
• Painted pieces are 2*7*7 =98
  
  unpainted pieces= 343 - 2*7*7 = 343-98= 245
• 12 years agoHelpfull: Yes(2) No(5)