How many 12-inch square tiles are needed to completely cover the floor of a greenhouse that is 25 feet by 40 feet ?

25 * 40 = ?

8.3

To find the number of 12-inch square tiles needed to cover the floor of the greenhouse, we need to determine the total area of the floor in square inches and then divide this by the area of each tile.

1. Convert the dimensions of the greenhouse from feet to inches:
- Length: 25 feet = 25 * 12 = 300 inches
- Width: 40 feet = 40 * 12 = 480 inches

2. Calculate the area of the greenhouse floor in square inches:
- Area = Length * Width = 300 inches * 480 inches = 144,000 square inches

3. Determine the area of each tile in square inches:
- Since each tile is 12 inches by 12 inches, the area of each tile is 12 inches * 12 inches = 144 square inches.

4. Divide the total area of the greenhouse floor by the area of each tile:
- Number of tiles = Total area / Area of each tile
- Number of tiles = 144,000 square inches / 144 square inches = 1,000 tiles

Therefore, you would need 1,000 12-inch square tiles to completely cover the floor of the greenhouse.