Question

how many bricks will be required for a wall it with is it long 8cm hight and 25cm broad a which building 20cm×18cm ×10cm

Answer 1

Answer:

Step-by-step explanation:

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

Answer 2

20×18×10
=3600
3600÷8×25
=18 walls