1) suppose it takes zeeland 5 labor hours to make each car and 15 labor hours to make each robot, while it requires antigo 1 labor hours to make each car and 10 labor hours to make each robot. further suppose each nation has 90 labor hours available. let's start with the 90 hours of labor. since we can only use 90 hours of labor in our example, then there are only two possible scenarios. meaning zeeland can produce either (90/5= 18 cars), or they could choose to produce (90/15= 6 robots). antigo can choose to produce either (90/1= 90 cars), or they could choose to produce (90/10= 9 robots) 2.) what is the opportunity cost of one car for antigo and for zeeland? what about for one robot? in order to calculate the opportunity cost for zeeland we have to divide (6 robots/18 cars= 1/3) in order to calculate the opportunity cost for antigo we have to divide (9 robots/90cars= 1/10) therefore, the opportunity cost for one robot for zeeland is (18/6= 3)