There are three distinct types of ventilators; namely TX (manual model), TY (automated model) and TZ (digital model), which DBS Manufacturing Company makes and sells to its customers. The operations manager has decided to combine orders for the same product type from customers to increase work order size and therefore be able to make one large production run per product type. Speciality equipment is used to make these products, and it is time-consuming to clean the equipment and set them up again between production runs. Each equipment and operator runs a daily eight-hour shift with 45 minutes lunch break and 20 minutes for operator breaks. Product Type TX TY Setup time (seconds) 4320 TZ 2880 6000 Processing time (minutes) Work order quantity 0.060 6350 0.025 970 0.080 13080 (10) What is the total workload (demand) in hours for the above work order mix? (3 marks) (11) How many pieces of equipment will it take to get this work done in 1, 2, 3 or 4 days? What might you say if DBS asked for your expert advice on how might this process be further improved? (3 marks) (12) Explain to the DBS operations manager the pros and cons of various capacity expansion strategies. (4 marks)