They will get 3 cups each.
48 cups
First, calculate the total amount of punch consumed by the guests. With 20 guests drinking 2 cups each, that's 40 cups total. Since there are 16 cups in a gallon, 8 gallons equals 128 cups. After the guests drink 40 cups, there would be 128 - 40 = 88 cups of punch left, which is equivalent to 5.5 gallons.
That is 3.25 gallons
Three gallons.
4.5 gallons left over.
two and a half gallons
For 100 people, you would typically need around 25 gallons of punch. This estimate is based on each person consuming about 8 ounces (1 cup) of punch. It's always a good idea to have extra on hand just in case.
You will need around 4 gallons of punch to serve 150 people. This amount would only be for one serving per person.
Here we go: First off, if you want 25 people to get 2 cups each, you will need a total of 50 cups of punch (25x2=50). Now, it looks like the basic recipe makes 10 cups of punch (3+7=10). You'll need to make 5 times the punch recipe to serve 25 people 2 cups each. That means you'll need 5x3=15 cups of punch mix and 5x7=35 cups of water. Don't forget the orange slices for garnish. This may be true but coming from me. A kid the 3 cups of punch mix will not add any thing to the water. The punch mix will just disolve
1 gallon = 16 cups 2 gallons = 32 cups 3 gallons = 48 cups 4 gallons = 64 cups
There are 80 cups in 5 gallons.16 cups = 1 gallon SO...... 5 gallons = 80 cups80 cups
20 gallons is 320 cups and 40 cups is 2.5 gallons.