A sandwich you ate contained 20 grams of CHO, 32 grams of protein, and 10 grams of fat What percentage of the kcalories in the sandwich came from protein?
A)27%
B)30%
C)43%
D)57%

Question

Quizplus · Accepted Answer

To determine the percentage of kcalories that come from protein, we need to know the total kcalories in the sandwich. We can calculate that as follows:

20 g CHO x 4 kcal/g = 80 kcal from carbohydrates
32 g protein x 4 kcal/g = 128 kcal from protein
10 g fat x 9 kcal/g = 90 kcal from fat

Total kcalories = 80 + 128 + 90 = 298 kcal

To find the percentage of kcalories from protein, we divide the kcalories from protein by the total kcalories and multiply by 100:

(128 kcal / 298 kcal) x 100% = 42.95%

Rounded to the nearest whole number, the answer is 43%. Therefore, the best choice is C.

A Sandwich You Ate Contained 20 Grams of CHO, 32