What is the percentage of alcohol in 86 proof liquor?

The correct answer is 43%. The proof system is a measure of the strength of alcoholic beverages in the United States, where the proof value is calculated as twice the percentage of alcohol by volume (ABV). Therefore, to determine the percentage of alcohol in liquor that is 86 proof, one would divide the proof by 2.

For 86 proof liquor, the calculation would be as follows:

86 proof ÷ 2 = 43%.

This means that 86 proof liquor contains 43% alcohol by volume. Understanding the proof system is essential for accurately determining the alcohol content in different types of spirits, which is crucial for responsible consumption and adherence to legal standards.