The floor of a rectangular Hall is of length 9m and 4m. How many tiles of 20cm by 30cm can be used to cover the floor completely

First, we need to convert the measurements to the same units. We convert everything to cm:

Length of hall: 9m x 100 = 900cm
Width of hall: 4m x 100 = 400cm
Area of hall: 900cm x 400cm = 360,000cm²

Each tile measures 20cm x 30cm, which is an area of 20cm x 30cm = 600cm².

To find the number of tiles needed to cover the floor completely, we need to divide the total area of the hall by the area of one tile:

Number of tiles = Total area of hall/Area of one tile
Number of tiles = 360,000cm²/600cm²
Number of tiles = 600

Therefore, 600 tiles of 20cm by 30cm can be used to cover the floor completely.

the floor is 30x20 tiles = 600 tiles

To calculate the number of tiles needed to cover the rectangular floor completely, we need to find the total area of the floor and then divide it by the area of each tile.

1. Calculate the area of the floor:
Area = Length × Width
Area = 9m × 4m
Area = 36 square meters

2. Convert the dimensions of the tiles to meters:
Length = 20cm = 0.20m
Width = 30cm = 0.30m

3. Calculate the area of each tile:
Tile Area = Length × Width
Tile Area = 0.20m × 0.30m
Tile Area = 0.06 square meters

4. Divide the total floor area by the area of each tile to get the total number of tiles needed:
Total Tiles = Total Area / Tile Area
Total Tiles = 36 square meters / 0.06 square meters
Total Tiles = 600 tiles

Therefore, you will need 600 tiles of 20cm by 30cm to cover the rectangular floor completely.

To find the number of tiles needed to cover the floor completely, we need to calculate the total area of the floor and then divide it by the area of one tile.

Step 1: Calculate the area of the floor
Length of the floor = 9m
Width of the floor = 4m
Area of the floor = Length × Width = 9m × 4m = 36 square meters

Step 2: Convert the dimensions of the tile to meters
Length of the tile = 20cm = 0.2m
Width of the tile = 30cm = 0.3m

Step 3: Calculate the area of one tile
Area of one tile = Length of the tile × Width of the tile = 0.2m × 0.3m = 0.06 square meters

Step 4: Divide the total area of the floor by the area of one tile to find the number of tiles needed
Number of tiles needed = Total area of the floor ÷ Area of one tile
Number of tiles needed = 36 square meters ÷ 0.06 square meters = 600 tiles

Therefore, you would need 600 tiles of size 20cm by 30cm to cover the floor completely.