TUGAS 2
12.11 Southeastern Bell stocks a certain switch con- nector at its central warehouse for
supplying field service offices. The yearly demand for these connectors is 15,000 units.
Southeastern estimates its annual holding cost for this item to be $25 per unit. The cost to place
and process an order from the supplier is $75. The company operates 300 days per year, and
the lead time to receive an order from the supplier is 2 working days.
a) Find the economic order quantity.
b) Find the annual holding costs.
c) Find the annual ordering costs.
d) What is the reorder point?
Jawaban:
a) Economic order quantity
EOQ = Type equation here. EOQ = √(2 x annual demand x ordering cost) : carrying cost
EOQ = √(2 x 15000 x 75) : 75
EOQ = 300 units
b) Annual holding cost
Average inventory = EOQ : 2 = 300 : 2 = 150
Annual holding cost = Average inventory × Carrying cost per unit = 150 x $25 = $3,750
c) Annual ordering costs
Number of orders = Annual demand : EOQ = 15000 : 300 = 50 orders
Annual ordering cost = Number of orders × ordering cost per order = 50 × $75 = $
3,750
d) Reorder point
Reorder point = (annual demand : number of days) x lead time = (15000 : 300) x 2 =
100 units