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If a meal contains 50 grams of carbohydrates, 20 grams of protein, and 10 grams

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Question: If a meal contains 50 grams of carbohydrates, 20 grams of protein, and 10 grams of fat, what is the total caloric value of the meal? (Carbohydrates = 4 cal/g, Protein = 4 cal/g, Fat = 9 cal/g) (2023)

Options:

  1. 320 calories
  2. 350 calories
  3. 370 calories
  4. 400 calories

Correct Answer: 370 calories

Exam Year: 2023

Solution: 

Total calories = (50g * 4) + (20g * 4) + (10g * 9) = 200 + 80 + 90 = 370 calories.

If a meal contains 50 grams of carbohydrates, 20 grams of protein, and 10 grams

Practice Questions

Q1
If a meal contains 50 grams of carbohydrates, 20 grams of protein, and 10 grams of fat, what is the total caloric value of the meal? (Carbohydrates = 4 cal/g, Protein = 4 cal/g, Fat = 9 cal/g) (2023)
  1. 320 calories
  2. 350 calories
  3. 370 calories
  4. 400 calories

Questions & Step-by-Step Solutions

If a meal contains 50 grams of carbohydrates, 20 grams of protein, and 10 grams of fat, what is the total caloric value of the meal? (Carbohydrates = 4 cal/g, Protein = 4 cal/g, Fat = 9 cal/g) (2023)
  • Step 1: Identify the amount of carbohydrates in the meal, which is 50 grams.
  • Step 2: Identify the caloric value of carbohydrates, which is 4 calories per gram.
  • Step 3: Calculate the calories from carbohydrates by multiplying the grams by the caloric value: 50 grams * 4 cal/g = 200 calories.
  • Step 4: Identify the amount of protein in the meal, which is 20 grams.
  • Step 5: Identify the caloric value of protein, which is also 4 calories per gram.
  • Step 6: Calculate the calories from protein by multiplying the grams by the caloric value: 20 grams * 4 cal/g = 80 calories.
  • Step 7: Identify the amount of fat in the meal, which is 10 grams.
  • Step 8: Identify the caloric value of fat, which is 9 calories per gram.
  • Step 9: Calculate the calories from fat by multiplying the grams by the caloric value: 10 grams * 9 cal/g = 90 calories.
  • Step 10: Add all the calories together: 200 calories (from carbohydrates) + 80 calories (from protein) + 90 calories (from fat) = 370 calories.
  • Caloric Calculation – Understanding how to calculate total caloric value from macronutrient content using specific caloric values for carbohydrates, proteins, and fats.
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