Question

How many bricks will be required to build a wall of $8m$ long, $6m$ height and $22.5cm$ thick, if each brick measures $25cm$ by $11.25cm$ by $6cm$

Answer 1

Measurement of the wall

Length of wall= $8m$ = $800cm$

Height of wall = $6m$ = $600cm$

Thickness of wall= $22.5cm$

Volume of wall = $Length\times Breadth\times Height$

=$800\times 600\times 22.5$

=$10800000c{m}^3$

Measurement of brick

Length= $25cm$, breadth=$11.25$ and height=$6cm$

Volume of brick= $25\times 11.25\times 6$

=$1687.5c{m}^3$

Total no of bricks =$\frac{Volumeofwall}{Volumeof1brick}$

=$\frac{10800000}{1687.5}$

=$6400$ Bricks

So, total no bricks used to build a wall is $6400$ bricks