Final answer:
The percent juice in the final mix is 75%.
Step-by-step explanation:
To find the percent juice in the final mix, we need to consider the total amount of juice and the total volume of the mix. You have 3 quarts of juice, which is equal to 96 ounces. The water/juice mix is 1 quart, which is 32 ounces. So, the total volume of the mix is 32 + 96 = 128 ounces.
Now, we can calculate the percent juice in the final mix by dividing the total volume of juice (96 ounces) by the total volume of the mix (128 ounces) and multiplying by 100.
Percent juice = (96 / 128) * 100 = 75%