ABC publishing uses 400 printers and 200 printing presses to produce books. A printer's wage rate is $20, and the price of a printing press is $5,000. The last printer added 20 books to total output. Is this publisher making a rational decision? Why or why not?

Answer 1

rational decision about what? buying the last printing press? or hiring the last printer? In either case, you do not present enough information. In particular, you do not have the price a book sells for.