a.Economic order quantity = ((2*annual demand quantity* fixed cost per order)/ annual holding cost per unit)^(0.5)
=((2*60500*4/1.6))^0.5
=550
b.Number of orders = sales/EOQ = 60500/550=110
c.Average inventory level = EOQ/2 = 550/2 = 275
d.
Annual ordering cost = annual demand quantity* fixed cost per order/EOQ
=60500*4/550=440
Annual carrying cost = Average inventory level* annual holding cost per unit = 275*1.6=440
Total cost = Annual ordering cost+ Annual carrying cost = 440+440=880
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