To find out how many tiles are needed, we first need to convert the measurements of the room and the tiles to the same units.
The room measures 12m x 9m.
We can convert meters to centimeters by multiplying by 100: 12m = 1200 cm and 9m = 900 cm.
The tiles measure 45cm x 30cm.
Now we can find out how many tiles are needed by dividing the area of the room by the area of each tile.
Area of the room: 1200 cm * 900 cm = 1080000 cm^2
Area of each tile: 45 cm * 30 cm = 1350 cm^2
Number of tiles needed: Area of the room / Area of each tile = 1080000 cm^2 / 1350 cm^2 = 800 tiles
Therefore, 800 tiles are needed to cover the floor of the room.
room measures 12m x 9m. The floor of room is to be covered by marble tiles measuring 45 cm by 30
cm. How many tiles are needed?
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