Convert the tile length to feet : 12 inches = 1 ft then 15 inches = 15/12 = 1.25 feet Then the area of each tile = 1.25 x 1.25 = 1.5625 sq ft The number of tiles required = 378 ÷ 1.5625 = 241.92 (round up to 242) However, the actual dimensions of the area can affect the number of tiles required. If the length is 21' then a strip of 17 tiles along the length will result in 3" wastage on the final tile. If the width is 18' then a strip of 15 tiles will result in 9" wastage on the final tile. If, because of the tile pattern, the wastage cannot be used then the tile requirement increase to 15 x 17 = 255.
15
15sq ft = 15 x 144 = 2160sq in each tile is 2 x 2 = 4 sq in TILES = 2160/4 = 540
.15
You need 225 tiles. :)
Convert the tile length to feet : 12 inches = 1 ft then 15 inches = 15/12 = 1.25 feet Then the area of each tile = 1.25 x 1.25 = 1.5625 sq ft The number of tiles required = 378 ÷ 1.5625 = 241.92 (round up to 242) However, the actual dimensions of the area can affect the number of tiles required. If the length is 21' then a strip of 17 tiles along the length will result in 3" wastage on the final tile. If the width is 18' then a strip of 15 tiles will result in 9" wastage on the final tile. If, because of the tile pattern, the wastage cannot be used then the tile requirement increase to 15 x 17 = 255.
379.6875 ft2
15 x 12 = 180
The measurement units for the tiles are not given. Assuming the tiles are 15 cm x 15 cm (the metric equivalent of the old 6" x 6" tile), the area of each tile is 0.2422 sq feet (approx) so that 63 tiles will cover 15.26 sq ft.
15
15sq ft = 15 x 144 = 2160sq in each tile is 2 x 2 = 4 sq in TILES = 2160/4 = 540
.15
You need 225 tiles. :)
The answer, quite obviously, depends on how big the bags are!
That will give us an area, NOT a volume. A third figure is needed for volume.
15 12x12 is a square foot 15 of those would be 15 square feet
Whom ever wrote this problem, did not give the unit of measurement (yards, feet, meters, etc.) so, I am going to presume that the 12 by 12 tile is in inches, and the 15 by 15 is in feet. If my presumption was correct the answer is 15 tiles. Because a 12 by 12 tile is = to 1 square foot. How many 1's fit into 15? 15! Well, not exactly..... You need to multiply 15 X 15 to get the square footage and that will give you the number of tiles needed since the tiles are 1 ft square. 15 x 15= 225. So you need 225 tiles. And add extra tiles for breakage...