The answer definitely depends on the size of each tile. That information may have been
in the part of the question that came before the part that you copied.
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The tile is bigger than the area that you want to cover (12x12 > 10x11) so one tile will do. <><><><><> However, if you meant 12x12 INCH tiles, and a 10x11 FOOT room, you would need 110 tiles.
256 tiles
If they are 12 inches x 12 inches then you would need 399 tiles.
13 boxes with 13 tiles in each
You would need 111 tile, but with waste you will want to get 125 tile.