QUESTION 5 [20 MARKSI Zulhakim Engineering Sdn Bhd is an industrial fan's manufacturing factory. The planner had prepared an aggregate planning for the next 9 months of operation for year 2020 for the fans production as shown in Table 4. Zulhakim Engineering Sdn Bhd has 20 permanent staff, each of them can produce 10 units of fan per period at a cost of RM60 per unit. Inventory carrying cost is RM50 per unit per period. The backlog of the product will be RM 100 per unit per period. (a) As a production manager, you have decided that the plan should include hiring TWO (2) people as a temporary basis to fulfil the forecast demand. Each of the worker able to produce same quantity as permanent worker. Based on the situation above, explained the rationale of your plan? 15 marks **( There is no limit for explanation words but should be at least of 20 words) (b) Calculate the total cost of this plan. Take note that, there is no backlog and ending inventory quantity by end of October 2020. There is no subcontract and hiring firing cost for the TWO (2) workers since they are only a temporary worker. [15 marks] Table 4 Aggregate Plan for Zulhakim Engineering Sdn Bhd (2020) Month Feb Mar Apr May June July Aug Sept Oct Forecast (quantity) 190 230 260 280 210 170 160 260 180