A floor of a rectangular hall is of lenght 9m and width is 4m.How many tiles of 20cm by 30cm can be used to cover the floor completely
The floor of a rectangular hall is of length 9m and width 4m how many tiles of 20cm by 30cm can be used to cover the floor completely
0.20 * 0.30 = 0.06 square meters/tile
9 * 4 = 36 square meters needed
so
36 / 0.06 tiles
A Floor of a rectanguarr hall is of length 9m and width 4m.how many tiles of 20cm by 30cm can be used to cover the floor completely
(9×100)×(4×100)=360,000
20×30=600
360,000÷600=600
600 tiles are needed to completely cover the hall.
To find out how many tiles of size 20cm by 30cm can be used to cover the entire floor of the rectangular hall, you need to calculate the total surface area of the hall's floor and then divide it by the area of each tile.
First, let's convert the dimensions of the hall from meters to centimeters:
Length: 9m x 100cm/m = 900cm
Width: 4m x 100cm/m = 400cm
Next, calculate the area of each tile:
Area of tile = Length of tile x Width of tile
Area of tile = 20cm x 30cm = 600cm²
Now, calculate the total surface area of the hall's floor:
Total surface area = Length of hall x Width of hall
Total surface area = 900cm x 400cm = 360,000cm²
Finally, divide the total surface area of the hall's floor by the area of each tile to find how many tiles are needed:
Number of tiles = Total surface area ÷ Area of each tile
Number of tiles = 360,000cm² ÷ 600cm² = 600 tiles
Therefore, 600 tiles of size 20cm by 30cm can be used to completely cover the floor of the rectangular hall.