Neck-ed is a company producing designer neckties. In March, Neck-ed employed 20 workers with a total output for the month of 100 neckties. In addition, if Neck-ed hired 5 additional workers, then its output would increase by 50 neckties. For March, Neck-ed's average product of labor was 5 neckties per worker, and its marginal product of labor would be 5 additional neckties per additional worker.