Your doctor prescribes you to take 400 milligrams of medicine every 8 hours. How many ounces of medicine do you take in a day?

Mar 13, 2018

$0.04233$ ounces of medicine in a day.

Explanation:

As $400$ milligrams of medicine is prescribed every $8$ hours, but there are $24$ hours in a day, one takes $3$ prescriptions or

$400 \times 3 = 1200$ milligrams of medicine

There are $1000$ milligrams in every gram, hence it is equal to $\frac{1200}{1000} = 1.2$ grams.

Now each ounce is $28.35$ grams, therefore each gram is $\frac{1}{28.35}$ grams

and $1.2$ gramss is $\frac{1.2}{28.35}$ ounces i.e. $0.04233$ ounces.