High School

Last week a patient weighed 218 lb. He now weighs 98.1 kg. How many ounces did he lose?

Answer :

Weight of the patient last week = 218 pounds
We already know that
1 kg = 0.453592 pounds
Then
218 pounds = 0.453592 * 218 kg
= 98.8831 kg
= 98.88 kg
Weight of the patient now = 98.10 kg
Then
The amount of weight lost by the patient = (98.88 - 98.10) kg
= 0.78 kg
So the patient loses 0.78 kg within a week. I hope the procedure is clear enough for you to understand. Only conversion part is important to take note while getting to the solution.

Final answer:

To convert from pounds to ounces, multiply the weight in pounds by the conversion factor of 16. The patient lost approximately 31.37 ounces of weight.

Explanation:

To convert from pounds to ounces, we need to multiply the weight in pounds by the conversion factor of 16 since there are 16 ounces in a pound.

Given that the patient initially weighed 218 lb, we multiply: 218 lb x 16 oz/lb = 3488 oz.

Now, the patient's current weight is 98.1 kg. To find out how many ounces the patient lost, we need to calculate the difference between their initial weight in ounces and their current weight in ounces:

3488 oz (initial weight) - (98.1 kg x 1000 g/kg ÷ 28.35 g/oz) = 3488 oz - 3456.63 oz = 31.37 oz

Therefore, the patient lost approximately 31.37 ounces of weight.