Question

a wall of length 25 m wide 60 M and height 2 metres to be constructed by using break each dimension 20 CM by 12 CM by 8 cm how many brick will be needed

Answer 1

L of wall= 2500cm
b = 6000cm
h = 200cm

volume = 2500 * 6000* 200
= 500000* 6000
= 300000000cm cube

volume of brick = 20* 12*8
= 240* 8
= 1920cm cube

no. of bricks required = 300000000/1920
= 30000000/192
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Answer 2

Heya!

Length of the wall = 25 m
Breadth of the wall = 60 m
Height of the wall = 2 m

Volume of the wall
= L × B × H
= 25 × 60 × 2 m³

For brick,
Length = 20 cm
Breadth = 12 cm
height = 8 cm

Volume of each brick
= L × B × H
= 20 × 12 × 8 cm³

Now, the total number of bricks
=> volume of wall/volume of bricks

= 2500 × 6000 × 200 / 20 × 12 × 8

= 1562500

Hope it helps!