Answer: 236 kcal
Step-by-step explanation:
Given : A serving of fish contains 50 g protein and 4 g of fat.
i.e. content of protein = 50 g
content of fat = 4 g
Also, The caloric value in protein = 4 kcal/g
The caloric value in fat = 9 kcal/g
Calories in 50 g protein = (content of protein)x (caloric value in protein )
= 50g x 4 kcal/g = 200 kcal
Calories in 4 g fat= (content of fat)x (caloric value in fat)
=4 g x 9 kcal/g = 36 kcal
Then, the total calories in the serving will be :Calories in 50 g protein + Calories in 4 g fat
= 200 kcal+ 36 kcal =236 kcal
Hence, there are 236 kcal in the serving.