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A meal contains 800 calories, with 40% from carbohydrates, 30% from proteins, an

Practice Questions

Q1
A meal contains 800 calories, with 40% from carbohydrates, 30% from proteins, and 30% from fats. How many calories are from carbohydrates?
  1. 240 calories
  2. 320 calories
  3. 400 calories
  4. 480 calories

Questions & Step-by-Step Solutions

A meal contains 800 calories, with 40% from carbohydrates, 30% from proteins, and 30% from fats. How many calories are from carbohydrates?
  • Step 1: Understand that the meal has a total of 800 calories.
  • Step 2: Identify that 40% of the calories come from carbohydrates.
  • Step 3: Convert the percentage (40%) into a decimal by dividing by 100. This gives you 0.40.
  • Step 4: Multiply the total calories (800) by the decimal (0.40) to find the calories from carbohydrates.
  • Step 5: Calculate 0.40 * 800, which equals 320 calories.
  • Percentage Calculation – Understanding how to calculate a percentage of a total value.
  • Caloric Distribution – Knowledge of how to interpret and apply the distribution of calories from macronutrients.
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