Question

how many bricks of size 24 cm long,12 cm wide and 8cm thick are required for making a wall of 12m long, 3m high and 24cm thick?​

Answer 1

Answer:

Number of bricks=90/100*2400*800*60/24*12*8 = 45000.

Step-by-step explanation:

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Answer 2

Firstly we'll convert each of them into cm.

So, new dimensions of the wall are,

2400cm*800cm*60cm

Total volume of the wall= 2400*800*60 cm³

=115,200,000cm³

But 10% of this volume is occupied by the mortar, hence we are left with it's 90% of volume.

Therefore, 115,200,000*90/100

=10,368,000 cm³ is the final volume of the wall.

Volume of the brick=24cm*12cm*8cm

=2,304cm³

Number of bricks= Volume of wall/Volume of bricks

=10,368,000/2, 304

=4500 bricks

Therefore 4500 bricks will be required.

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