Question

George has a banana, a peanut butter and jelly sandwich on whole wheat and a glass of 2% milk. This meal provides George with 22 grams of protein, 22 grams of fat and 93 grams of carbohydrate and 4 grams of dietary fiber. Answer the following questions and show your work How many calories are in his lunch? What % of the calories in his lunch are from carbohydrate?

Answer 1

CALORIES IN THE LUNCH

1 gm of protein=4 calories

22 gm of protein=22*4=88 calories

1 gm of fat=9 calories

22 gm of fat=22*9=198 calories

1 gm of CH O=4 calories

93 gm of C HO =93*4=372 calories

1 gm of dietary fibre=4 calories

4 gm of dietary fibre=4*4=16 calories

TOTAL CALORIES IN HIS LUNCH=88+198+372+16=674 Calories

One gram of protein has 4 calories.Therefore 22 gm of protein gives 22*4=88 calories.

One gram of fat has 9 calories.Therefore 22 gm of fat gives 22 *9=198 calories

One gram of C HO has 4 calories.Therefore 93 gm of fat gives 93*4=372 calories.

One gram of dietary fibre has 4 calories.Therefore 4 gm of dietary fibre gives 4*4=16 calories.

SO,total calories in his lunch is 88+198+372+16=674 calories.

% OF CALORIES FROM CARBOHYDRATES=372/674*100

=55.19%

The percentage of calories from C HO is calculated as calories in 93 gm fat divided by total calories multiplied by 100,that is 372/674*100=55.19%

SO,the calories in his lunch is 674 cal and the percentage of calories from carbohydrates is 55.19%