Suppose that a firm needs two workers to run one machine in its production process. The firm pays R15 per labour hour and R20 per machine hour. The firm spends exactly R50,000. In order to maximize its output, what is the efficient number (in hours) of workers and machines that the firm should hire? Select one: 1000 workers and 2000 machines O 1500 workers and 1375 machines 2000 workers and 1000 machines 1500 workers and 1500 machines 1750 workers and 1187.5 machines