Joan's dinner contains 210 grams of carbohydrate, 60 grams of protein, and 52 grams of fat. what percent of kilocalories in this meal comes from carbohydrate? joan's dinner contains 210 grams of carbohydrate, 60 grams of protein, and 52 grams of fat. what percent of kilocalories in this meal comes from carbohydrate?
a.35%
b.28%
c.54%
d.22%

% Calories of carbohydrates=54%

So option C is correct which is 54%

Step-by-step explanation:

In order to find the kilocalories of carbohydrates in the dinner we first have to convert grams of carbohydrates,protein and fat into kilocalories.

1 gram of carbohydrate≈ 4 kilocalories

1 gram of protein≈ 4 kilocalories

1 gram of fat≈ 9 kilocalories

Calories in 210 grams of Carbohydrates=210*4=840

Calories in 60 grams of protein=60*4=240

Calories in 52 grams of fat=52*9=468

Total Calories=Calories of carbs+Calories of protein+Calories of fat

Total Calories=840+240+468

Total Calories=1548

% Calories of carbohydrates= (Calories of carbohydrates/Total Calories)*100

% Calories of carbohydrates=(840/1548)*100

% Calories of carbohydrates=0.54*100

% Calories of carbohydrates=54%

So option C is correct which is 54%