Question

find the number of bricks of dimension 20cm ×5cm×10cm required to wall of dimensions 300cm×200cm×20cm.​

Answer 1

Answer:

Dimension of brick are =20cm×10cm×5cm

volume of 1 brick =20×10×5=1000cm

3

Dimension of wall =10m×15m×0.2m

volume of wall =10×15×0.2=30m

3

now no. of brick requried to make wall =

volumeof1brick

volumeofwall

no. of bricks =

1000m

3

30m

3

=

1000

30

×10

6

=30×10

3

[no. of bricks =30,000 bricks.]