Final answer:
The ratio of red tiles to all tiles on a floor with 24 red and 91 multicolored tiles is calculated by dividing the number of red tiles (24) by the total number of tiles (115), resulting in a ratio of 24 to 115.
Step-by-step explanation:
The question involves finding the ratio of red tiles to the total number of tiles on a floor. To calculate the ratio, you divide the number of red tiles by the total number of tiles. The floor is covered with 24 plain red tiles and 91 multicolored tiles. The total number of tiles is the sum of both red and multicolored tiles.
The total number of tiles is:
24 (red tiles) + 91 (multicolored tiles) = 115 (all tiles)
Next, we determine the ratio of red tiles to all tiles:
Ratio = number of red tiles / total number of tiles
Ratio = 24 / 115
Therefore, the ratio of red tiles to all tiles on the floor is 24 to 115.