a man cut small cubes of 3 cubic cms each. Which he joined to form a cube wit 10 cubes length, 3 cubes in depth and 3 cubes wide. How many more small cubes does she require to form a perfect cube?

• At present, the number of cubes used are 10*3*3=90. For a perfect cube, the cube should be 10 cubes length, 10 cubes in depth, and 10 cubes wide, i.e. 10*10*10=1000. So, additional number of cubes required is 1000-90= 910
• 11 years agoHelpfull: Yes(18) No(3)
• 910 it is! ^ correct !
• 11 years agoHelpfull: Yes(2) No(1)
• the no of cubes used are 10*3*3=90,
  for a perfect cube the cube is 10cubes in length,10cubes in depth,10cubes wide10*10*10=1000.
  so additional no. of cubes is 1000-90=910
  ans is 910
• 11 years agoHelpfull: Yes(2) No(1)
• sorry vipul i misunderstood the previous question based on cube.. your solution was correct
• 11 years agoHelpfull: Yes(2) No(0)
• 10*10*10/10*3*3 = 910
• 11 years agoHelpfull: Yes(1) No(0)
• the ans is 34.....
• 11 years agoHelpfull: Yes(0) No(15)
• hey Vipul 90 is volume hence no. of cubes would be 90/3=30
  similarly 1000 is the volume of cube with side 10 and hence no. of cubes would be 1000/3 which comes in decimal..
• 11 years agoHelpfull: Yes(0) No(1)
• 910 is right
  
• 11 years agoHelpfull: Yes(0) No(0)