Since it is 16 by 16 inches you must turn 120 ft2 into 17280 in2. Therefore you must find the area of the tiles (256 in2 each) and divide 17280 by 256. You will need 67 1/2 tiles. (I thank the other contributor in recognizing my error)
297 16x16-inch tiles.
125 16-inch tiles.
First I would convert 16x16 inch tiles in feet 16x16 inch tiles = 1.25x1.25 feet tiles To calculate the square feet that one tile takes up multiply 1.25 x 1.25 1.25 x 1.25 = 1.5625 sq feet Now calculate 190/1.5625 to find the number of tiles that can fit in 190 square feet 190/1.5625 = 121.6 You will need 121-122 square tiles
141
16X16=256 inches 12X12=144 inches=1 Square Foot 126X144=18144 18144/256=79 79 16X16 tiles
297 16x16-inch tiles.
125 16-inch tiles.
90 tiles.
First I would convert 16x16 inch tiles in feet 16x16 inch tiles = 1.25x1.25 feet tiles To calculate the square feet that one tile takes up multiply 1.25 x 1.25 1.25 x 1.25 = 1.5625 sq feet Now calculate 190/1.5625 to find the number of tiles that can fit in 190 square feet 190/1.5625 = 121.6 You will need 121-122 square tiles
1121/2 16x16-inch tiles.
141
150 16x16" tiles; you'll have a small part of one tile left over.
16X16=256 inches 12X12=144 inches=1 Square Foot 126X144=18144 18144/256=79 79 16X16 tiles
Each 16 inch tile is 1.78 square feet. You would need 169 tiles, plus some for spoilage.
Well, darling, if each tile is 16x16 square feet, then you just need to divide the total area (150 square feet) by the area of one tile (16x16 square feet) to get your answer. So, 150 divided by 16x16 equals about 5.86 tiles. But since you can't have a fraction of a tile, you'll need to round up to 6 tiles to cover that 150 square feet.
16 x 16 = 256 sq in = 1.777 sq ft 420/1.777 = 237 tiles approximately
16 inch x 16 inch = 16x16/144 = 1.777777.... sq.ft. 450/1.777777..... = 253.125 tiles (not counting any wastage caused by cutting, breakage, etc) = 254 tiles minimum.