Answer:
582
Explanation:
Jane consumed 85 grams of carbohydrates
He would obtain 85 x 4 = 340 kcal from carbohydrates since 4 kcal are obtained when one gram of carbohydrates are digested.
He consumed 20 grams of proteins which means that he would obtain 20 x 4 = 80 kcal from it. One gram of proteins also obtains 4 kcal.
The total energy obtained by consumption of 18 grams of fats= 18 x 9 = 162 kcal since 9 kcal are obtained by 1 gram of fats.
Therefore, total kcalories obtained by breakfast= 340 + 80 + 162 = 582 kilocalories
