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A recipe requires 0.75 liters of water for 6 servings. How many servings can be made with 4.5 liters of water?

1. 32
2. 40
3. 42
4. 36

Correct answer: 36

Solution

The number of servings is directly proportional to the amount of water. If 0.75 liters makes 6 servings, then 1 liter makes 8 servings. Therefore, 4.5 liters makes 4.5 × 8 = 36 servings.

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