how much water should she mix with the lemon juice?

Question

LEMONADE Laronda wants to make fresh lemonade. The recipe she finds online recommends that the fresh lemon juice should be 20% of the total volume. She has 18 ounces of fresh lemon juice. How much water should she mix with the lemon juice?

Answer 1

water is 80% lemon juice 20%

a ratio of 80/20 = 4/1 water to juice

W/18 = 4/1 = 4

W = 4(18) = 72

Water required by the recipe for 18 ounces of lemon juice = 4(18) = 72 ounces

(72+18) x 20% = 90(.2) = 18 ounces lemon juice

90 x 80% = 90(.8) = 72 ounces water