A bottle of vodka is labeled as 60 proof. What is its alcohol content in terms of (v/v)%?
A) 7.5%
B) 15%
C) 30.0%
D) 60.0%

Question

Quizplus · Accepted Answer

Proof is defined as twice the percentage of alcohol by volume (ABV). Therefore, a 60 proof vodka contains 30% ABV (60 proof/2 = 30% ABV). The question is asking for the alcohol content in terms of volume/volume (v/v) percentage, which is the percentage of the liquid that is alcohol. Therefore, the answer is C) 30.0%.

A Bottle of Vodka Is Labeled as 60 Proof