below is the production possibilities frontier for taiwan. it shows that taiwan is able to produce either 80 tons of caviar or 20 batches of potatoes using all of its available resources. also suppose that taiwan decides to produce at point a: 40 tons of caviar and 10 batches of potatoes. if taiwan engages in international trade and trades 20 tons of caviar for 11 batches of potatoes with another country, it will be able to consume outside of its production possibilities frontier. how many batches of potatoes will the country have at the end of the exchange?