Part X requires machining on a milling machine $($operations A and B are required$).$Find the number of machines required to produce $3000$ parts per week. Assume thecompany will be operating five days per week, $18$ hours per day. The following information is known:Operation A Standard Time $3$ min Efficiency $95\%$ Reliability $95\%$ Defect Rate$2\%$B $5$ min $95\%90\%5\%$Note: The milling machine requires tool changes and preventive maintenance afterevery lot of $500$ parts. These changes require $30$ minutes.