Answer:
The answer is 141.66 grams per each meal
Explanation:
Calories is nothing but the unit of energy which people consume through the food and drink and they use this energy while doing physical activities. Taking right amount of calories are essential for human health.
Given -
Average calorie intake for men is 2550 cal
1 gram of food contains 6 kcal
So therefore 
so 425 gram of food will contain 2550 cal
It is also given that there are 3 meals per day, so we will divide 425 gram of foods in to 3 equal meals

Therefore each meal would have 141.66 grams.