Megan (110lb, female) and Katy (130lb, female) are having drinks while they get ready to go to a party. They are both drinking out of 16 ounce clear plastic cups. For each drink, they put 3 ounces of 80-proof vodka and 9 ounces of juice in the plastic cup. They each have 2 drinks in the two hours it takes them to get ready.