Question

rajat wants to cover the window space of his room with bricks if the window is 1.5m long 2.5m high and 20cm thick and each brick measures 25cm by 12cm by 10cm then find the required number of bricks required to cover the space​

Answer 1

Answer:

The number of bricks required to cover the space is 313 bricks.

Step-by-step explanation:

Given as :

The length of window = l = 1.5 meters

The breadth of window = b = 2.5 meters

The height of window = h = 20 cm = 0.2 meter

So, The volume of window = l × b × h

or,  volume of window = 1.5 m × 2.5 m × 0.2 m

i.e  volume of window = 0.75 m³

Again

The length of brick = l' = 20 cm = 0.2 meter

The breadth of brick = b' = 12 cm = 0.12 meter

The height of brick = h' = 10 cm = 0.1 meter

So, The volume of brick = l' × b' × h'

or,  volume of brick = 0.2 m × 0.12 m × 0.1 m

i.e  volume of brick = 0.0024 m³

Let The number of bricks required to cover the space = n bricks

So, number of bricks = $\dfrac{volume of window}{volume of brick}$

or, n = $\dfrac{0.75}{0.0024}$

∴  n = 312.5 ≈ 313

So, The number of bricks = n = 313

Hence, The number of bricks required to cover the space is 313 bricks. Answer