Question

One-third cup of black beans provides 20% of the potassium you need daily. You must get the remaining 1,360 milligrams from other sources.

How many milligrams of potassium should you consume daily?

____ milligrams

Answer 1

1,360 is 80%
Plus ? 20%
Is 100%
So 80 is 4 times 20
So you can divide 1360 by 4 to find 20%
So 340mg is 20% of your daily value

So then add 340 plus 1360 to get total daily value

1700mg