ServSafe Alcohol Practice Exam

If someone had 3 ounces of 80-proof vodka on the rocks, how many drinks have they consumed?

1. 1

2. 2

3. 3

4. 4

The correct answer is: 2

To determine the number of drinks consumed, it's essential to understand the standard drink measurement. In the United States, a standard drink is typically defined as containing about 0.6 fluid ounces of pure alcohol. 80-proof vodka has an alcohol content of 40% by volume, meaning that in 3 ounces of vodka, the amount of pure alcohol can be calculated. Since 40% of 3 ounces is 1.2 ounces, that indicates the drinker has consumed 1.2 ounces of pure alcohol. Now, to convert this amount into standard drinks, divide the total ounces of pure alcohol (1.2 ounces) by the amount of alcohol in one standard drink (0.6 ounces). 1.2 ounces of pure alcohol divided by 0.6 ounces per drink equals 2 standard drinks. Therefore, for someone who has had 3 ounces of 80-proof vodka on the rocks, they have consumed 2 drinks. This is why the correct answer is 2.