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12 October, 06:17

How many calories are provided by a food that contains 20 grams of carbohydrate, 8 grams protein, and 5 grams of fat?

a. 232

b. 378

c. 157

d. 258

e. 558?

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Answers (1)
  1. 12 October, 06:28
    0
    Every gram of carbohydrate yields 4 Calories.

    Every gram of protein also yields 4 Calories.

    Every gram of fat yields 9 Calories.

    20 g carb x 4 = 80 Cal

    8 g protein x 4 = 32 Cal

    5 g fat x 9 = 45 Cal.

    80+32+45 = 157 Calories. Answer C
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