18 young adults you need 108 cups of water and 72 cups of water show how to sclae down this ratio to feed 3 young adults
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To scale down the ratio of 18 young adults to 108 cups of water and 72 cups of water in order to feed 3 young adults, you need to divide the total amount of water by the total number of young adults in the original ratio.
First, let's find out the ratio of cups of water to young adults. Divide the total cups of water by the total number of young adults:
Total cups of water: 108 + 72 = 180 cups of water
Total number of young adults: 18 young adults
Ratio of cups of water to young adults: 180 cups of water ÷ 18 young adults = 10 cups of water per young adult
Now that we know the ratio of cups of water per young adult, we can calculate the amount of water needed for 3 young adults.
To do this, multiply the number of young adults by the ratio of cups of water per young adult:
Number of young adults: 3
Amount of water needed: 3 young adults × 10 cups of water per young adult = 30 cups of water
Therefore, to feed 3 young adults, you would need 30 cups of water.