To find the correct number of calories per serving from the given recipe, we first need to calculate the total calories contributed by \( \frac{1}{3} \) of a container of yogurt.
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The total calories in one container of yogurt is 150 calories.
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Calculate the calories in \( \frac{1}{3} \) of the container: \[ \frac{1}{3} \times 150 = 50 \] So, \( \frac{1}{3} \) of the container has 50 calories.
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Since the recipe makes 4 servings, we then divide this total by the number of servings: \[ 50 \div 4 = 12.5 \]
The correct calculation to find the calories per serving is: \[ \frac{1}{3} \times 150 \div 4 \]
Thus, the first response option, \( \frac{1}{3} \times 150 \div 4 \), is the correct choice.