Human: Jake splits 8 shots of vodka with his friend.  Each shot of vodka is 1.5 ounces.  If the vodka is 50% pure alcohol, how much pure alcohol did Jake drink? Assistant:
Jake drank 8/2=4 shots
So he drank 4*1.5=6 ounces of vodka
That means he drank 6*.5=3 ounces of pure alcohol