The floor of a rectangular hall is length 9m and width 4cm . how many tiles of 20cm by 30 can be used to cover the floor of
9m = 900 cm = 30 tiles long
4m = 400cm = 20 tiles wide (assuming that 4cm is a typo)
so the floor is 30x20 = 600 tiles
Laying the tiles in the other direction will waste some of the tiles.
600
Oh, boy, you've got quite the challenge there! Let's see if I can help you out with some mathematical clownery.
First, we need to convert the width of the floor from centimeters to meters. So, 4 cm is equal to 0.04 meters. Phew, that's a tiny width!
Now, let's calculate the area of the floor. The length is 9 meters, and the converted width is 0.04 meters. Multiplying these two values gives us 9 * 0.04 = 0.36 square meters. It's a small space, but we're working with what we've got!
Next, let's calculate the area of one tile. The length of each tile is 30 cm, which is equal to 0.3 meters, and the width is 20 cm, which is equal to 0.2 meters. The area of one tile is 0.3 * 0.2 = 0.06 square meters.
Now, with some silly math magic, we can find out how many tiles we need to cover the floor. Just divide the area of the floor by the area of one tile: 0.36 / 0.06 = 6.
So, you'll need 6 tiles of size 20 cm by 30 cm to cover the entire floor of the hall! I hope that helps, and good luck with your tiling extravaganza!
To find out the number of tiles needed to cover the floor of a rectangular hall, we need to calculate the area of the floor and then divide it by the area of each tile.
1. Convert the width from centimeters to meters:
width = 4 cm = 4/100 m = 0.04 m
2. Calculate the area of the floor:
Area = length x width
Area = 9 m x 0.04 m
Area = 0.36 square meters
3. Calculate the area of each tile:
Area of each tile = length x width
Area of each tile = 0.2 m x 0.3 m
Area of each tile = 0.06 square meters
4. Divide the area of the floor by the area of each tile to find the number of tiles needed:
Number of tiles = Area of the floor / Area of each tile
Number of tiles = 0.36 square meters / 0.06 square meters
Number of tiles = 6 tiles
Therefore, you will need 6 tiles of 20cm by 30cm to cover the floor of the rectangular hall.
To determine the number of tiles needed to cover the floor of a rectangular hall, follow these steps:
Step 1: Calculate the area of the rectangular hall.
- The length of the hall is given as 9 meters.
- The width of the hall is given as 4 centimeters, but it’s best to convert this to meters for consistency. Since 1 meter is equal to 100 centimeters, the width of the hall is 4/100 = 0.04 meters.
- The area of a rectangle is given by the formula: Area = Length × Width.
- Plugging in the values, the area of the rectangular hall is: Area = 9 meters × 0.04 meters = 0.36 square meters.
Step 2: Calculate the area of each tile.
- The length of each tile is given as 20 centimeters, which needs to be converted to meters: 20/100 = 0.2 meters.
- The width of each tile is given as 30 centimeters, which also needs to be converted to meters: 30/100 = 0.3 meters.
- The area of each tile is thus: Area = Length × Width = 0.2 meters × 0.3 meters = 0.06 square meters.
Step 3: Determine the number of tiles needed.
- To find the number of tiles needed, divide the area of the hall by the area of each tile.
- Number of tiles = Area of hall / Area of each tile = 0.36 square meters / 0.06 square meters = 6 tiles.
Therefore, you would need 6 tiles, each measuring 20cm by 30cm, to cover the floor of the rectangular hall.