Solve clearly

Let us suppose that if a country were to shift all production to guns they would be able to produce 71 guns. Further, they face an opportunity cost of 2.9 Butter per gun. Calculate how many sticks of butter this country could produce if they shifted all their production to producing butter. Record your answer as a positive number to two decimal places. [ This is an example of a hard question, I did not explicitly answer this question in class, but you should be able to figure it out using logic and the concept learned in class. In an exam only a small proportion of your questions would have this level of difficulty.]