For a beverage, Lisa mixes 20 cups of lemonade to 5 cups of iced tea in a ratio of ________.
1) 20 cups of lemonade and 5 cups of iced tea
2) 3 cups of lemonade and 5 cups of iced tea
3) 10 cups of lemonade and 25 cups of iced tea
4) 15 cups of lemonade and 20 cups of iced tea
