first give the unit of tiles dimensions as 16 inch or meter or feet or what, if it is not in feet as is look from above question then change the dimension in feet then multiply the length and breadth of the side of tiles (after changing the unit in feet) and then divide 100 by the outcome of multiplication of lenght and breadth of tile.
100 tiles or 96 which is the correct amount
180
113 tiles
100 + 10-15% = 110 - 115 pcs
13 x 13 (assumed inches) is 13/12 feet x 13/12 feet, so the area of one tile is 169/144 square feet. To cover 100 square feet you need (100)/(169/144) tiles which works out to (100 x 144)/169 = 14400/169 = 85.2, make it 86 tiles
100 tiles or 96 which is the correct amount
180
113 tiles
400. That's because there are four six-by-six tiles in each square foot. 4 tiles per square foot X 100 square feet = 400 tiles.
100 + 10-15% = 110 - 115 pcs
Each 10' x 10' tile measures 100 square feet and 3300 square feet divided by 100 square feet gives the answer that 33 tiles are needed.
13 x 13 (assumed inches) is 13/12 feet x 13/12 feet, so the area of one tile is 169/144 square feet. To cover 100 square feet you need (100)/(169/144) tiles which works out to (100 x 144)/169 = 14400/169 = 85.2, make it 86 tiles
400 6" x 6" tiles are needed.
Five tiles will cover 160 square feet so they will cover 100% of 156 square feet with a little excess. A precise coverage will require 4.875 tiles.
Multiply the two dimensions to get the area. The calculation will give you 4 square feet for each tile and 100 square feet for 25 tiles.
You would need 100 tiles - and have some fragments left over.
100 tiles