If each serving is 40 grams, how many total servings of the dietary supplement contain 105 grams of protein?

Question

This was a chart along with it:

 

Calories          140 Cal

Fat                 1 g

Cholesterol      5 mg

Sodium           190 mg

Carbs              2 g

Protein            30 g

 

The table above provides the nutritional facts of a serving of a dietary supplement.

 

Please help. I got confused. Thank you!

Answer 1

Total amount of protein = (Number of servings) * (Amount of protein per serving)  

 

Let X be the number of servings.  Then  

 

105 = X * 30

X = 105/30 = 7/2 = 3.5 servings  

 

Check:  3.5 servings * 30 g protein/serving = 105 grams of protein