150 tiles
30 square meters is 300,000 square cm
30 square meters = ~322.92 square feet.
12 inches = 1 foot Thus the tiles would be 1 foot square. You therefore need 30 to cover a 30 square foot room.
A 30 m by 30 m square. Each of the tiles is 20 cm by 20 cm [20 cm = 0.20 m]. So 30 m / 0.20 m = 150. So you need 150 x 150 = 22500 tiles
150 tiles
If the tiles are 40x40 cm, each square meter will require 2.5 x 2.5, or 6.25 tiles. For 30 square meters then, you would need approximately 30 * 6.25 tiles, or 187.5 tiles. Of course, if you're doing real flooring and not a simple math puzzle, then .5 tiles are pretty useless, and you'd need to account not just for the area of the room, but the length and width.
30 square meters is 300,000 square cm
30 square meters = ~322.92 square feet.
30
The answer depends on the shape of the 30 square feet area. If it is in the form of a strip that is 5 inches wide and 72 feet long and you don't want mosaics with little offcuts, then you will require 144 tiles.
Area = 30*40 = 1200 square meters
Assuming that 12 x 12 is 12" x 12" (one square foot), then 30 one-square-foot tiles would cover 30 square feet.
12 inches = 1 foot Thus the tiles would be 1 foot square. You therefore need 30 to cover a 30 square foot room.
A 30 m by 30 m square. Each of the tiles is 20 cm by 20 cm [20 cm = 0.20 m]. So 30 m / 0.20 m = 150. So you need 150 x 150 = 22500 tiles
Lets do length and width in terms of tiles. The length is 6m/0.2m/tile 30 tiles and the width is 5m/0.2m/tile 25 tiles. Then the area is l X w 30 tiles X 25 tiles 750 square tiles. Since each tile is square, 750 tiles.
Answer: 30 m² = 322.917 ft²