Sometimes alcoholic beverages are mixed to raise or lower the alcohol content to a target value.

Output: volume of a second alcoholic beverage to add to a first to achieve a target alcohol content of the final mixed drink



(1) percent alcohol in first alcoholic beverage

(2) volume of first alcoholic beverage in mL (1 ounce = 29.586 mL)

(3) percent alcohol in second alcoholic beverage


((volume of first beverage) * (percent alcohol of first beverage)) + ((volume of second beverage) + (percent alcohol of second beverage)) = ((volume of first beverage) + (volume of second beverage)) * (target alcohol percent)


volume of second beverage =

= (volume of first beverage) * ((target percent alcohol) - (percent alcohol first beverage)) / ((percent alcohol second beverage) - (target percent alcohol))

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