Assuming you mean 18 inch by 18 inch, you will need 133 and 1/3 tiles.
75 Get extra for breakage.
Assuming you mean the tiles are 16 inches square - you would need 169 tiles.
175
300 sq ft = 300*12*12 = 43200 sq inches. So number of tiles required = 43200/(13*13) = 43200/169 = 255.6 tiles So a minimum of 256 tiles would be required. But that assumes that all the off-cuts are utilised - NOT a reasonable assumption. Normally a minimum margin of 5% is advised.
13x13= 169in(one tile) 300/169= about 1.8 (amount of tiles that can fit)
a 12 x 12 tile is 1 square foot. So, you would need 300 tiles to cover 300 square feet
118
75 Get extra for breakage.
Assuming you mean the tiles are 16 inches square - you would need 169 tiles.
175
300 sq ft = 300*12*12 = 43200 sq inches. So number of tiles required = 43200/(13*13) = 43200/169 = 255.6 tiles So a minimum of 256 tiles would be required. But that assumes that all the off-cuts are utilised - NOT a reasonable assumption. Normally a minimum margin of 5% is advised.
300
No. of tiles =Area of floor / Area of tiles. area of floor = 300 X 50 sq cm. area of tiles = 20 X10 sq cm.hence, no. of tiles = 300 X50 /200 =75
13x13= 169in(one tile) 300/169= about 1.8 (amount of tiles that can fit)
300 mm = 0.300 meters and 450 mm = 0.450 meters. Therefore, the area of each tile in square meters is 0.300 X 0.450 = 0.135 square meters. Therefore, the smallest number of tiles that can cover an area of 13 square meters is 13/0.135 or at least 97 tiles.
First we need to calculate the square footage of the room. 15*20 = 300 square feet Now we need to know how many square feet each tile covers. 20" = 1.667~ square feet 1.6672 = 2.78 square feet. Now we divide the area of the tiles into the area of the room. 300/2.78 = 108 tiles. This gives the exact number of tiles you need mathematically. Realistically you need to account for cutting and breaking. It's safe to round that up to 120 tiles.
If you're talking floor tiles as opposed to wall tiles and by 12x12 you mean they are 12 inches square, then the answer is 300. Because each tile is one square foot and a 15'x20' room is 300 square feet. Simple, eh?