Question

Suppose you ate an entire bag of potato chips and drank a 16-ounce cola while you studies for an exam. Together these items contain 144 grams of carbohydrate (in the cola and chips), 12 grams of protein (from the chips), 60 grams of fat (also in the chips), and 10 mg of vitamin C (amazingly enough in the chips). How many kilocalories did you consume? Show your work for full credit.

Answer 1

1 gram carbohydrates gives - 4 Kilocalories

You ate 144 grams of carbohydrates

So, 144 grams of carbohydrates gives 4 x 144 = 576 kilocalories

1 gram of protein gives - 4 kilocalories

You ate 12 grams of proteins

So, 12 grams of proteins give 4 x 12 = 48 kilocalories

1 gram of fat gives - 9 kilocalories

You ate 60 grams of fats

So, 60 grams of fat give 9 x 60 = 540 kilocalories

Vitamin provides 0 calories

There for total kilocalories = 576 + 48 + 540 = 1164 kilocalories

  

Total kilocalories from carbohydrates = 4 x 144