A.) An industrial plant needs to make 150,000 parts per month to meet demand. Each mont contains 20 working days, each of which allows for 3 seperate 8 hour shifts. If a worker can produce 10 parts per hour, how many workers will be needed on each shift? B.) An industrial plant needs to make 150,000 parts per month to meet demand. Each month contains 20 working days, each of which allows for 3 separate 8 hour shifts. If material costs $15/part, capital costs are $125,000 and labor costs are $12.50/hr, what is the multifactor productivity of the plant from part A?