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N7 2.The cost of unloading and ship's time in the port is $15,000 and $25,000 respectively. Determine the optimal number of unloading facilities so as

N7

2.The cost of unloading and ship's time in the port is $15,000 and $25,000 respectively. Determine the optimal number of unloading facilities so as to minimize the total cost for all three queue systems.

Hint: Compute the cost for service facilities, ship's time, and the total cost. Assume that arrival rate is equally divided among unloading facilities.

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