cube is coloured pink on 1face and orange on opposite.brown on ane face and silver on adjacent to brown.cut into 125 small cubes. how many cubes have all the faces uncoloured?

• ans : 27
  (solution :
  formula for faces uncoloured = (n-2)^3
  cube root of 125(n) = 5
  no face coloured = (5-2)^3 =27.)
  
• 12 years agoHelpfull: Yes(31) No(22)
• 3*4*4= 48
  because only 4 faces are painted.
• 12 years agoHelpfull: Yes(18) No(2)
• As only 4 faces are coloured, 48 cubes will be uncoloured.
• 12 years agoHelpfull: Yes(8) No(2)
• Uncolored :45
  80 cubes has colored on a-least one side in each faces,
• 10 years agoHelpfull: Yes(8) No(1)
• Jason can you explain me clearly
• 12 years agoHelpfull: Yes(3) No(0)
• First check this link : http://jwilson.coe.uga.edu/EMT668/emt668.student.folders/SeitzBrian/EMT669/painted.cube/painted.html
  
  .. Now My solution is
  
  No. of Unpainted Sides = 27 (From above link)
  No . of 2 sides painted are = 36 (dive by 6(Since 6 sides))=6 *2 (Since 2 un painted) = 12
  So toatal Unpainted = 27+12 = 39
  
  
• 10 years agoHelpfull: Yes(1) No(1)
• Cubes with 3 sides colored = 8
  Cubes with 2 sides colored = 12 * (N-2)
  Cubes with 1 sides colored = 6 * (N-2)^2
  Cubes with 3 sides colored = (N-2)^3
  cube =5*5*5=125 ; so N=5
  so ans is 3^3 =27
  
• 9 years agoHelpfull: Yes(1) No(0)
• ans:105
  5*4=20 will colored 5 from each face...
  there are 4 color face
• 10 years agoHelpfull: Yes(0) No(2)
• ans:48
  3*4*4
• 10 years agoHelpfull: Yes(0) No(0)
• the answer wil be 48 . this is the correct answer
• 10 years agoHelpfull: Yes(0) No(0)
• FIRST OF ALL THERE WILL BE (5-2)^3=27 CUBES UNCOLORED EVEN IF ALL SIX FACES WERE COLORED BUT HERE ONLY 4 FACES ARE COLORED, SO CLEARLY THERE WILL BE MORE NO OF CUBES UNPAINTED THAN 27...
  THE ANS WILL BE 2*3*4+27= 51 CUBES...
  DUE TO THE TWO SIDES UNPAINTED EACH OF THEM WILL CONTAIN 3*4 UNPAINTED CUBES.
• 10 years agoHelpfull: Yes(0) No(0)
• there have no cubes where all the faces uncoloured.
  because of in cube 4 faces are coloured.
  
• 9 years agoHelpfull: Yes(0) No(0)
• 3*4*4=48 faces uncolored
• 9 years agoHelpfull: Yes(0) No(0)
• 50 =25+25
  Each side 4 cuts so 5 pieces
  (4+1)(4+1)(4+1)=125
  uncoloured faces 2 so=25*2=50
• 9 years agoHelpfull: Yes(0) No(0)