The tile is bigger than the area that you want to cover (12x12 > 10x11) so one tile will do.
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However, if you meant 12x12 INCH tiles, and a 10x11 FOOT room, you would need 110 tiles.
80 if the tiles are 12x12 - 12x12 is one square foot covering 80 you would need 80 tiles
256 tiles
13 boxes with 13 tiles in each
144
585
168
650
375
549!
48 12"x12" tiles for a 7'x7' patio.
If the tiles are 12x12 inches square - you would need... 75 !
123 will cover it. Get extras.