Answer:
He needs 1 and 1/3 cups of pinapple juice when he uses 3 cups of orange juice.
Explanation:
Orange Juice:
3 cups / 3/4 cups = 12/3 = 4
Pineapple Juice:
1/3 × 4 = 4/3 cups= 1 1/3 cups
Answer: 11/3
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