Question

Janice needs 3 gallons of lemonade for a party. She has 4 quarts, 6 pints, and 4 cups of lemonade already made. How much more lemonade does she need to make?

Answer 1

4 quarts is 1 gallon
6 pints is 0.75 gallons
4 cups is 0.25 gallons 
if you add all of those you would get 2 gallons
so she would need 1 more gallon of lemonade