Question

a brick walk having dimension 5m,10m,25cm have an opening 2m and 1.5m .find the no of bricks of dimension 19*9*9​

Answer 1

Answer:

Dimension of brick are =20cm×10cm×5cm

volume of 1 brick =20×10×5=1000cm3

Dimension of wall =10m×15m×0.2m

volume of wall =10×15×0.2=30m3

now no. of brick requried to make wall  =volumeof1brickvolumeofwall

no. of bricks =1000m330m3=100030×106=30×103

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