Floor of a room is 6 m long and 9 m wide. It has been covered with tiles of size 50 cm by 40 cm. How many
tiles are needed to cover the floor?
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Step-by-step explanation:
Length of a floor = 6m = 600cm
Breadth of a floor = 9m = 900 cm
Area of a floor = l x b
= 600 x 900
= 540000 cm²
Length of a tile = 50 cm
Breadth of a tile = 40 cm
Area of a tile = l x b
= 50 x 40
= 2000 cm²
Tiles required = Area of a floor
Area of a tile
= 540000
2000
= 540
2
= 270 tiles
270 tiles are required to cover the floor
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