An archived questions was, " One serving of a particular food contains 16g of carbohydrates, 2g of protein, and 10 g of fats. Approximately how many calories does it contain?" The archived answer was 300 calories.

How did you get this answer? Shouldn't it be 162?

(9 cal * 10g fat) + (4 cal * 16g carb) + (4cal * 2g protein)

Question

Biology

Pooh Bear

25 September, 19:53

An archived questions was, " One serving of a particular food contains 16g of carbohydrates, 2g of protein, and 10 g of fats. Approximately how many calories does it contain?" The archived answer was 300 calories.

How did you get this answer? Shouldn't it be 162?

(9 cal * 10g fat) + (4 cal * 16g carb) + (4cal * 2g protein)

+4

Answers (1)

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Izabella Espinoza · Answer 1

From the information provided, the correct answer should indeed be 162 calories. Your assumptions of 9 calories per gram of fat, 4 calories per gram of carbohydrates, and 4 calories per gram of protein are all correct, and there does not appear to be any error in your math. As you showed, (9 * 10) + (4 * 16) + (4 * 2) = 90 + 64 + 8 = 162. For the typical basic calculation of the amount of calories in a given food, these assumptions are suitable.