Leena cut small cubes of 3 cubic cm each. She joined it to make a cuboid of length 10 cm, width 3 cm and depth 3 cm. How many more cubes oes she need to make a perfect cube?
a) 910 b) 250 c) 750 d) 650

• total cubes reqd for 10*10*10 perfect cube = 1000/3
  Cubes used for 10*3*3 = 90/3 = 30
  So no. of cubes reqd = 1000/3 - 30 = 333.33 - 30 = 300
  Either question is wrng or options are wrng
• 13 years agoHelpfull: Yes(58) No(16)
• without cutting the small cubes any further , she cannot make a cuboid of length 10 cm , therefore the question has logically conflicting data !
• 7 years agoHelpfull: Yes(0) No(1)