Question

How many bricks, each 20cm×10cm×4cm, are required to built a wall 10m long, 5m high and 40cm thick?​

Answer 1

Answer:

25000.

Step-by-step explanation:

(10×100×5×100×40)÷20×10×4=25000 bricks.

Answer 2

Answer:

$\huge \mathbb{\purple{Question}}$

How many bricks, each 20cm×10cm×4cm, are required to built a wall 10m long, 5m high and 40cm thick?

$\huge \mathbb{\purple{Answer}}$

No. Of bricks =vol. of one brick

$= 1000 \times 300 \times 40 \div 25 \times 12 \times 8$

$= \frac{12000000}{2400}$

$= 5000$

5000 bricks will be required to construct a wall