Question

The dimensions of a brick are 24 cm x 12 cm x 8 cm. How many such bricks will be required to build a wall of 20 m length, 48 cm breadth and 6 m height?

Answer 1

l = 24 cm 

b = 12 cm 

h = 8 cm 

Volume of the brick = lbh = (24 x 12 x 8) cm³ = 2304 cm³ 

Wall dimensions are : 

L = 20 m = 2000 cm 

B = 48 cm 

H = 6 m = 600 cm

No. of bricks required to build the wall 

= 1000 x 25

No. of bricks required = 25000