Christopher's lunch contains 121 grams of carbohydrate,40 grams of protein,and 25 grams of fat.What percent of kilocalories (kcal)in this meal come from fat?

Question

Quizplus · Accepted Answer

To calculate the percent of kilocalories from fat, we need to know the total number of kilocalories in the meal. Fat provides 9 calories per gram, while carbohydrate and protein provide 4 calories per gram each. 
So, the total number of kilocalories in Christopher's lunch is: 
(121 grams carbohydrate x 4 kcal/g) + (40 grams protein x 4 kcal/g) + (25 grams fat x 9 kcal/g) = 484 + 160 + 225 = 869 kcal

To determine the percentage of kilocalories from fat, we need to divide the number of kilocalories from fat by the total number of kilocalories and multiply by 100: 
(25 grams fat x 9 kcal/g) / 869 kcal x 100% = 2,025/869 x 100% = 26%

Therefore, the answer is B, 26%.

Christopher's Lunch Contains 121 Grams of Carbohydrate,40 Grams of Protein,and