Reference no: EM132784216

In 2020, PT Sinar Surya plans to develop a new business in the field of ceramics. During a pandemic like this the growth in demand for ornamental plants is increasing rapidly. This condition has resulted in higher demand for flower pots. Although at this time many plastic flower pots are offered, the demand for clay flower pots has not decreased and it tends to continue to increase.

• Besides flower pots for ornamental plants, PT Sinar Surya also plans to produce ceramic displays. At the current location, the available raw material supplies are only for the next 3 years with the amount of basic raw materials of 400 kg per month. The raw material used to produce Bungan's pots is twice as large as for the production of displays. While the time needed to work on a flower pot of 0.75 from the time of making the display with the machine working time for 1 month is 240 hours. The variable cost of the flower pot is Rp. 30,000 while the display is Rp. 40,000. Meanwhile, the selling price of flower pots is Rp. 50,000 and a display of Rp. 70,000

• In 2020, the demand for PT Sinar Surya's flower pot production is increasing, it has even exceeded its production capacity. To meet the needs of these consumers, PT Sinar Surya collaborates with PT Terang Bulan in Bekasi and PT Lampu Pijar in Kerawang. Meanwhile, PT Sinar Surya itself is located in Bogor Regency. Meanwhile, PT Sinar Surya consumers are in the following three areas, namely Jakarta, Serang and Bandung. The production capacity, requirements and transportation costs for each region are as follows. Meanwhile, the cost of transportation per unit from PT Sinar Surya to consumers is 2 for Jakarta, 3 for Serang area and 5 for Bandung.

• At this time the company has only one employee serving purchases, seeing the growth in the number of buyers who come, the company is considering adding one employee. The following shows the number of buyer arrivals and the service capacity each employee can provide.

• Taking into account market conditions and plans to expand the market to foreign countries, In 2021 PT Sinar Surya plans to control the quality of each of its products, for that all products from partners will be stored and distributed through PT Sinar Surya's own warehouse. For this reason, PT Sinar Mas will determine the main partner of PT Sinar Surya as a partner in meeting market demand. The market demand for flower pots in 2021 is 900 pieces per month, with a storage cost of 3000 per unit per year and an order fee of Rp. 25,000 per order

Problem 1: Calculate the number of distributions from each region including PT Sinar Surya itself using the north west corner method?

Problem 2: Calculate the level of activity of the current system, the average number of customers in the queue, the time the customer is in the waiting line and the time the customer is in the system.