To calculate the correct number of calories per serving from the recipe, follow these steps:
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Determine the total calories from the yogurt used in the recipe. Since the yogurt container has 150 calories and the recipe calls for 1/3 of the container, first calculate the calories from the yogurt:
\[ \text{Calories from yogurt} = \frac{1}{3} \times 150 = 50 \text{ calories} \]
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Divide the total calories by the number of servings. The recipe makes 4 servings, so to find the calories per serving, divide the total calories from the yogurt by the number of servings:
\[ \text{Calories per serving} = \frac{50}{4} = 12.5 \text{ calories} \]
Now, looking at the options provided, the correct calculation is:
\[ \frac{1}{3} \times 150 \div 4 \]
This corresponds to the second option:
1/3×150÷4
So the correct response is: 1/3×150÷4.