How many champagne flutes (holding 180 ml) of Dom Pérignon champagne can a 80 kg person drink in Arizona before reaching the blood alcohol limit for extreme DUI? Champagne typically has alcohol concentration of 12.5% (v/v, or volume per volume). Assume complete absorption, uniform distribution (in all aqueous compartments) and water content of 60% of body weight. Similarly ignore gender differences, elimination, metabolism etc.