How many bricks will be required for a wall which is 9m long,8m high and 25 cm broad,if each brick measures 20 cm* 18cm* 10cm?
Answers
Answered by
18
9×8×2.5/20×18×10=20 bricks
Answered by
49
LEt length of the wall(L)=900 cm
Height of the wall(H)= 800 cm
Breadth (B) =25 cm
Volume of the wall= L*B*H
=900*800*25
=720000*25
=180,00,000 cm³
Let lenght of the brick(l)=20cm
Breadth of the brick(b)=18cm
and height of the brick(h)=10cm
Volume of the brick=lbh
=20*18*10
=3600 cm³
∴Required Number of Bricks=Volume of the wall/ volume of the brick
=180,00,000 cm³/3600 cm³
=5000
Height of the wall(H)= 800 cm
Breadth (B) =25 cm
Volume of the wall= L*B*H
=900*800*25
=720000*25
=180,00,000 cm³
Let lenght of the brick(l)=20cm
Breadth of the brick(b)=18cm
and height of the brick(h)=10cm
Volume of the brick=lbh
=20*18*10
=3600 cm³
∴Required Number of Bricks=Volume of the wall/ volume of the brick
=180,00,000 cm³/3600 cm³
=5000
Similar questions