Answer: 300 grams
Explanation:
Let x be the amount ( in grams) of carbohydrates are recommended per day.
Given : A nutrition label states that there are 36g of carbohydrates in each serving.
This accounts for 12% of the daily value. we can write 12 % as 0.12.
According to the question , we have

Hence, 300 grams of carbohydrates are recommended per day.