And used approximately 2.5 grams of sugar for every cup of lemon juice.
To find out how many grams of sugar And used, we need to determine the ratio of lemon juice to sugar for both And and Jessica.
For And, the ratio is 1 cup of lemon juice to 3 grams of sugar.
For Jessica, the ratio is 2 cups of lemon juice to 5 grams of sugar. We can set up a proportion to find out how many grams of sugar And used:
1 cup of lemon juice / 3 grams of sugar = x cups of lemon juice / y grams of sugar
Solving this proportion, we find that And used 5/2 grams of sugar for every cup of lemon juice, or approximately 2.5 grams of sugar.