How many bricks, each of size 25 cm x 13.5 cm x 6 cm, will be required

1.	How many bricks, each of size 25 cm x 13.5 cm x 6 cm, will be required to build a wall 8 m long, 5.4 m high and 33 cm thick?
Answer» We know that, Volume of cuboid = Length × Breadth × Height Firstly, Volume of the brick = 25 × 13.5 × 6 = 2025 cm³ Now, Volume of the wall = 800 × 540 × 33 = 14256000 cm³ Hence, Total number of bricks required = \(\frac{Volume\,of\,the\,wall}{Volume\,of\,each\,brick}\) = \(\frac{14256000}{2025}\) = 7040 bricks

How many bricks, each of size 25 cm x 13.5 cm x 6 cm, will be required to build a wall 8 m long, 5.4 m high and 33 cm thick?

Answer»

We know that,

Volume of cuboid = Length × Breadth × Height

Firstly,

Volume of the brick = 25 × 13.5 × 6

= 2025 cm³

Now,

Volume of the wall = 800 × 540 × 33

= 14256000 cm³

Hence,

Total number of bricks required = \(\frac{Volume\,of\,the\,wall}{Volume\,of\,each\,brick}\)

= \(\frac{14256000}{2025}\)

= 7040 bricks