a serving of oatmeal is 16% of fiber needed.

Question

You must get 21 grams fiber from other source.How many grams do you need daily?

Answer 1

1 Serving of oatmeal = 16% of fiber needed. That means you still need (100% - 16%) 84% of your daily value.

 

Since the problem states you need 21 more grams, you can assume that 21 grams = 84%. 

The question is x grams = 100%. 

You can make this into a proportion, cross-multiply, and divide. 

 

21/84 = x/100

x = 25 grams