solution

A beverage distribution in lower mainland BC has an annual throughput of 5,000,000 bottles. The warehouse is open 300 days in a year and 8 hours a day. Since a constant turn-over-ratio is maintained in the warehouse, the daily amount entering or leaving the warehouse is about the same. The average truckload quantity is approximately 1000 for inbound trucks and 1200 for outbound shipments. It takes about 3.5 hour to off-load a truck into the warehouse and 4.0 hours to up-load one from the warehouse. How many loading and unloading bays are needed in this warehouse to support the daily activity level?