7 . Ch. 3 Problems and Applications Q3 Dina and Juanita are roommates. They spend most of their time studying (of course), but they ieave some time for their Favorite activities: making pizza and brewing root beer. Dina takes 3 hours to brew a gallon of root beer and 2 hours to make a pizza. Juanita takes 7 hours to brew a gallon of root beer and 5 hours to make a pizza. Dina's opportunity cost of making a pizza is V of root beer, and Juanita's opportunity cost of making a pizza is V of root beer. 7 has an absoiute advantage in making pizza, and V has a comparative advantage in making pizza. 1f Dina and Juanita trade foods with each other, V will trade pizza in exchange for root beer. The price of pizza can be expressed in terms of gallons of root beer. The highest price at which pizza can be traded that would make both roommates better off is V of root beer, and the lowest price that makes both roommates better oi'i= is V of root beer per pizza