leena cut small cubes of 10cm dimension each.she joined it to make a cuboid of length 100cm,width 50cm and depth 50cm.how many nore cube does she need to make a perfect cube

• Ans. 750
  for making a cuboid of length 100cm,width 50cm and depth 50cm only (50*50*100)/(10*10*10)=250 cube is required.
  for making a perfect cube she needs all dimension of 100cm, means (100*100*100)/(10*10*10)=1000.
  so she needs more 1000-250=750 cubes.
• 11 years agoHelpfull: Yes(26) No(0)
• answer= 750
  cubes needed to make the given cubiod = 10*5*5 = 250
  to make a perfect cube, with sides 100x100x100, 3 more parts are needed...
  i.e., 250+250+250= 750.... which makes a perfect cube when added to the cubiod..
• 11 years agoHelpfull: Yes(4) No(0)
• the volume of the cuboid is 100*50*50=250000cubic cm.
  actually te volume of the 10 cm cube is 1000cuic cm.
  so the no cubes are required= 250.
• 11 years agoHelpfull: Yes(3) No(10)