The length and breadth of a hall are 24 m and 20 m respectively. How many tiles of size 0.4 m x 0.3 m each are needed in flooring it?

Options

A. 1500
B. 4000
C. 3000
D. 2500

Answer

To find out how many tiles are needed to floor the hall, we will follow these steps:

### Step 1: Calculate the area of the hall
The area of a rectangle is calculated using the formula:
\[ \text{Area} = \text{Length} \times \text{Breadth} \]

Given:
- Length of the hall = 24 m
- Breadth of the hall = 20 m

So,
\[ \text{Area of the hall} = 24 \, \text{m} \times 20 \, \text{m} = 480 \, \text{m}^2 \]

### Step 2: Calculate the area of one tile
The area of a tile is also calculated using the same formula:
\[ \text{Area} = \text{Length} \times \text{Breadth} \]

Given:
- Length of the tile = 0.4 m
- Breadth of the tile = 0.3 m

So,
\[ \text{Area of one tile} = 0.4 \, \text{m} \times 0.3 \, \text{m} = 0.12 \, \text{m}^2 \]

### Step 3: Calculate the number of tiles needed
To find the number of tiles required, we divide the area of the hall by the area of one tile:
\[ \text{Number of tiles} = \frac{\text{Area of the hall}}{\text{Area of one tile}} \]

So,
\[ \text{Number of tiles} = \frac{480 \, \text{m}^2}{0.12 \, \text{m}^2} \]

Calculating this gives:
\[ \text{Number of tiles} = 4000 \]

### Final Answer
Therefore, **4000 tiles** are needed to floor the hall.

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