Question

Find the number of bricks of size 20cm*12cm*5cm required to build a wall of volume 60m3

Answer 1

Answer:

Volume of Wall=60 m3×1000000=60000000cm3

Volume of one brick=20×12×5=1020 cm3

No Of Bricks=Volume of wall/Volume of one brick

=60000000/1020

Answer 2

The number of bricks is 50000.

Step-by-step explanation:

Given : Bricks of size 20cm × 12cm × 5cm required to build a wall of volume 60 m³.

To find : The number of bricks ?

Solution :

The dimension of brick is  20cm × 12cm × 5cm.

The volume of the brick is $V=l\times b\times h$

$V=20\times 12\times 5$

$V=1200\ cm^3$

Converting into m³,

$1\ cm^3= 10^{-6}\ m^3$

$1200\ cm^3= 1200\times 10^{-6}\ m^3$

$1200\ cm^3=0.0012\ m^3$

The volume of the brick is 0.0012 m³.

The volume of the wall is 60 m³.

The number of bricks is given by,

$n=\frac{\text{Volume of wall}}{\text{Volume of brick}}$

$n=\frac{60}{0.0012}$

$n=50000$

Therefore, the number of bricks is 50000.

#Learn more

A Wall 4m long, 3m wide, 13cm thick is made of bricks measuring 20cm *12cm *6.5,find the no. of bricks.​

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