The approximate energy yield of carbohydrates is 4 calories/gram; fats yield about 9 calories/gram, and proteins about 4 calories/gram. jack and sarah consumed the following for lunch: jack—100 grams protein, 20 grams fat, 75 grams carbohydrates; sarah— 75 grams protein, 10 grams fats, 75 grams carbohydrates. how many calories each did jack and sarah consume

Calories consume by Sarah 690 cal.

Calories consume by jack 880 cal.

Explanation:

For jack

Mass of carbohydrate = 75 g

Mass of protein = 100 g

Mass of fats = 20 g

For Sarah,

Mass of carbohydrate = 75 g

Mass of protein = 75 g

Mass of fats = 10 g

Solution:

The average calories content of

Protein 4 cal/g

Carbohydrate 4 cal/g

Fat 9 cal/g

Then,

First of all we will calculate the calories consume by jack.

100 g protein × 4 cal/g =  400 cal

20 g fat × 9 cal/g = 180 cal

75 g carb. × 4 cal/g = 300 cal

              Total calories = 880 cal  

Calories consume by Sarah.

75 g protein × 4 cal/g =  300 cal

10 g fat × 9 cal/g = 90 cal

75 g carb. × 4 cal/g = 300 cal

              Total calories = 690 cal  

the median of the data is 4.5.