A punch recipe requires 4 cups of cranberry juice to make 5 gallons of puch. Using the same recipe, what is the amount of cranberry juice needed for 1 gallon of punch.

4/5 cup or 0.8 of a cup

Step-by-step explanation:

For 5 gallons of punch = craberry juice required is 4 cups

For 1 gallon of punch = cranberry juice required is x cup

By cross multiplying;

x = (1 × 4) / 5

= 4/5

= 0.8

Answer is 4/5 cup or 0.8 of a cup