Tiles that are two feet on a side cover 4 square feet. 378 of them cover 1512 square feet.
4.
24x24 inch tile equals 4 square feet 275/4 = 68.75 You would need 69. (24x24 inch tiles to cover 275 sqft)
250 tiles
157 18 by 18 tiles are needed to cover 352 square feet.
378 of them. Get 400 for breakage.
A 24x24 inch tile would be four square feet. 140 divided by 4 would be 35 tiles.
Each tile is 2' x 2' or 4 sq. feet. So 108/4 = 27 tiles
You will need 47 tiles.
Tiles that are two feet on a side cover 4 square feet. 378 of them cover 1512 square feet.
4.
24x24 inch tile equals 4 square feet 275/4 = 68.75 You would need 69. (24x24 inch tiles to cover 275 sqft)
250 tiles
157 18 by 18 tiles are needed to cover 352 square feet.
A 24x24 tile is 4 square feet. You would need 105 of them.
Assumption 1: The question refers to 24 inch * 24 inch tiles. Assumption 2: All off-cuts are used. A 24" by 24" tile is 2' by 2' so that it covers 4 square feet. Number of tiles required = 260 sq feet / 4 sq ft = 65.
24x24=4sq ft. 720/4=180.