1.0 g of fat has 9kcal/g, while 1.0 g of carbohydrates and protein have 4kcal/g each, determine the total amount of Calories (kcal) in 1 serving if that serving contains 20.0 g of carbohydrates, 20.0 g of protein and 15.0 g of fat

Answer 1

convert each of the food groups to calories, and add.