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If a meal contains 40 grams of carbohydrates, 10 grams of protein, and 5 grams o

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Question: If a meal contains 40 grams of carbohydrates, 10 grams of protein, and 5 grams of fat, how many total calories does it provide? (Carbohydrates = 4 cal/g, Protein = 4 cal/g, Fat = 9 cal/g)

Options:

  1. 210 calories
  2. 230 calories
  3. 250 calories
  4. 270 calories

Correct Answer: 230 calories

Solution: 

Total calories = (40g * 4) + (10g * 4) + (5g * 9) = 160 + 40 + 45 = 245 calories.

If a meal contains 40 grams of carbohydrates, 10 grams of protein, and 5 grams o

Practice Questions

Q1
If a meal contains 40 grams of carbohydrates, 10 grams of protein, and 5 grams of fat, how many total calories does it provide? (Carbohydrates = 4 cal/g, Protein = 4 cal/g, Fat = 9 cal/g)
  1. 210 calories
  2. 230 calories
  3. 250 calories
  4. 270 calories

Questions & Step-by-Step Solutions

If a meal contains 40 grams of carbohydrates, 10 grams of protein, and 5 grams of fat, how many total calories does it provide? (Carbohydrates = 4 cal/g, Protein = 4 cal/g, Fat = 9 cal/g)
  • Step 1: Identify the amount of carbohydrates in the meal, which is 40 grams.
  • Step 2: Identify the amount of protein in the meal, which is 10 grams.
  • Step 3: Identify the amount of fat in the meal, which is 5 grams.
  • Step 4: Calculate the calories from carbohydrates by multiplying the grams of carbohydrates (40g) by the calories per gram of carbohydrates (4 cal/g). This gives you 40g * 4 cal/g = 160 calories.
  • Step 5: Calculate the calories from protein by multiplying the grams of protein (10g) by the calories per gram of protein (4 cal/g). This gives you 10g * 4 cal/g = 40 calories.
  • Step 6: Calculate the calories from fat by multiplying the grams of fat (5g) by the calories per gram of fat (9 cal/g). This gives you 5g * 9 cal/g = 45 calories.
  • Step 7: Add all the calories together: 160 calories (from carbohydrates) + 40 calories (from protein) + 45 calories (from fat) = 245 total calories.
  • Caloric Calculation – Understanding how to calculate total calories from macronutrients using their respective caloric values.
  • Macronutrient Composition – Identifying the contribution of carbohydrates, proteins, and fats to the total caloric content of a meal.
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