Discuss the below:
Q: Two machining operations 'A' (3 minutes per part) and 'B' (10 minutes per part) are performed sequentially to manufacture a part Machines A and B produce 5% and 6% defective items, respectively. The factory operates 8 hours each day, 5 days per week, 4.2 weeks per month. Every day each machine needs 0.30 hours for being set up. We need to handle a demand of 1,000 items per month. Use a machine-up factor equal to 85% for each machine. Find the machine fraction for:
i. How many type A machines needed, and
ii. How many type B machines needed to meet the monthly demand?