Answer:
Yuan would have 10 cups of cranberry juice and 5 cups of pineapple juice.
Explanation:
For every 3 cups of punch, Yuan has 2 cups of cranberry juice. First, we need to find out how many "batches" of the punch Yuan is making. 3*5=15, so 5 batches. Then we have to find out how much cranberry juice they need. 2*5=10. Then, the pineapple juice. The pineapple juice is the rest of the punch, and 3-2=1. 1*5=5. To check, 10+5=15