Answer:
None of the above
Explanation:
optimal time between orders = working days / expected number of orders
expected number of orders = D / EOQ
so we must first find economic order quantity (EOQ) = √(2DS / H)
EOQ = √(2DS / H) = √(2 x 180,000 x $10 / $1) = √360,000 = 1,897.36 ≈ 1,897 units
N = D / EOQ = 180,000 / 1,897 = 94.89 orders per year
optimal time between orders = working days / expected number of orders = 300 working days / 94.89 order = 3.16 days