Question

Jan is trying to increase her water intake to meet recommended guidelines. She currently consumes 2 (24 oz. each) bottles of water per day, and 2 cups (8 oz. each) of low-fat milk. Assuming that she will obtain 15% of her fluid needs from foods, how many cups of water does she still need to drink?

Answer 1

Extra 4 cups to make up 11 cups a day

Explanation:

Here we have that Jan obtains 15% of her fluid needs from food, therefore, she gets the remaining 85 % from drinking water

If the recommended daily intake = 2.7 liters or 91.3 oz

And she already consumes 48 oz of water and 16 oz of milk

Note milk is equivalent to 0.87 water therefore total intake = 48 + 16*0.87= 61.92 oz

She needs to take additional (91.3 - 61.92) = 29.4 oz or 3.68 ≈ 4 cups extra to meet her recommended daily dosage.