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Melanie, a female student weighing 125 pounds, drives to the party with the idea

ID: 3077654 • Letter: M

Question

Melanie, a female student weighing 125 pounds, drives to the party with the idea of nursing three 12-ounce beers for the first hour and then nursing two 12-ounce beers each hour for the next three hours. If she starts with no alcohol in her system, how many grams of alcohol are there in each liter of her body fluids at the end of the four hours?
After the four hours, about how long must she go without drinking alcohol in order to reduce her body fluid alcohol concentration to a legal driving level of under (0.8 grams)/liter?
Each 12-ounce beer Melanie is drinking contains 13.0 grams of alcohol.

Explanation / Answer

W=125 pounds

1 ounce = 0.0625 pounds

1st hr .... 12 ounce......13 gm

after 4 hr

total alcohol is 12*4=48 ounce

=3 pounds

125 pounds= 125 * 453.592 gm = 56699 gm=56.699 kg = 58.97 litre

alcohol = 4*13=52 gm

1 kilogram is 1.04 liters.

Grams of alcohol per litre of boby fluid = 52/ (58.97 )=0.882 gm / litre