Answer: 20 cups of flour should be used if 80 cups of sugar are used.
Explanation:
In the recipe, for every 6 cups of flour, there are 24 cups of sugar. Thus, the ratio of flour to sugar is 6:24, which could be simplified to 1:4.
80 cups of sugar will be used in the given scenario. 80 cups is 20 times more than the number of cups in the ratio. Thus, if you multiply each side of the ratio by 20, you would get the number of each ingredient in a certain proportion.
1:4
1 x 20:4 x 20
20:80
20 cups of flour should be used if 80 cups of sugar are used.