The outer dimensions of a cubical room are 8m*6m*4m and inner dimension are 7.8m*5.8m*4m (roof is not included in the dimension). If the size of brick used (including cement) are 20cm*10cm*8cm, then number of bricks used to construct wall will be

• the volume of outer dimensio is=8*6*4=192m^3
  the volume of inner dimension is=7.8*5.8*4=180.96m^3
  the dif between outer and inner dimensions=11.04m^3
  the number of bricks used is=dif between outer and inner dimensions/volume of brick
  11040000/1600=6900
• 9 years agoHelpfull: Yes(1) No(0)