A lady builds 9cm length, 10 cm width,3 cm height box using 3 cubic cm cubes. What is the minimum number of cubes required to build the box?

• box volume=10*9*3
  cube vol=3
  no of cubes req=10*9*3/3=90
• 13 years agoHelpfull: Yes(9) No(1)
• 90 is the answer
• 13 years agoHelpfull: Yes(3) No(3)
• ans 82 ......they using 3 cubic cm so they use only chance 1cm 1cm 3cm cubes
  for 9 cm lenth they use 3cm cube remaining 1 cm cube .......
  ans is 3*10*3-1*8*1=82
• 13 years agoHelpfull: Yes(0) No(4)