1 gallon --------------------- 4 quarts
1 quarts ------------------- 2 pints
4 quarts --------------- x
x = 8 pints
1 pints ------------------------ 2 cups
8 pints ---------------------- x
x = 16 cups
1.25 cups ----------------------- 10 servings
16 cups ------------------------ x
x = 12.8 servings
It is possible to made 12.8 servings