The floor of a rectangular Hall is of lenght 9m and weight 4m hw many tiles of 2cm by cm can be used to cover the floor completely

Answer 1

First, we need to convert the measurements to the same units. We can convert meters to centimeters by multiplying by 100:

Length = 9m x 100cm/m = 900cm
Width = 4m x 100cm/m = 400cm

Next, we need to calculate the total area of the floor in square centimeters:

Area = Length x Width = 900cm x 400cm = 360000cm^2

Finally, we can calculate how many tiles of 2cm x 2cm we will need to cover the entire floor by dividing the total area by the area of each tile:

Number of tiles = Area of floor / Area of each tile
Number of tiles = 360000cm^2 / 4cm^2
Number of tiles = 90000

Therefore, we will need 90,000 tiles of 2cm x 2cm to cover the entire floor.