A meal consists of 30 grams of protein, 90 grams of carbohydrates, and 20 grams of fat. The total kilocalories are:

Question

Quizplus · Accepted Answer

-Proteins provide 4 kcal/gram, so 30 grams of protein provides 120 kcal.
-Carbohydrates also provide 4 kcal/gram, so 90 grams of carbohydrates provide 360 kcal.
-Fats provide 9 kcal/gram, so 20 grams of fat provide 180 kcal.
-Adding these values together, we get a total of 660 kcal. 
Therefore, the correct answer is B.

A Meal Consists of 30 Grams of Protein, 90 Grams