176 tiles
Is the room 10 by 6 inches? If so you need 5 12 inch tiles. If it is 10 by 6 feet then the answer is 60.
6.75 Tiles
342 of them.
50
30
12 tiles by 18 tiles or 216 tiles total
291.43 tiles
176 tiles
35
1728
Is the room 10 by 6 inches? If so you need 5 12 inch tiles. If it is 10 by 6 feet then the answer is 60.
360 tiles.
6.75 Tiles
144 assuming no waste.
400
342 of them.