The operator of a rock quarry is invited to bid on furnishing 42,000 cy of crushed...

The operator of a rock quarry is invited to bid on furnishing 42,000 cy of crushed aggregate for a job. The aggregate will be delivered to the job, which is 27 miles from the quarry. The aggregate will be loaded into trucks by a loader that can load at a rate of 75 cy/hr. The trucks will haul 18 cy/load at an average speed of 50 mi./hr loaded and 55 mi./hr empty. The estimated time to dump a load is 5 min. Assume a 45 min. effective hour for the loading and hauling operation.

The cost information for the job is: Royalty paid for aggregate = $1.35/cy Overhead = $0.75/cy Profit = $1.20/cy Loader = $85.00/hr Operator = $32.00/hr Trucks, each = $55.00/hr Truck driver, each = $28.00/hr Foremen = $35.00/hr

a) How many trucks are required? b) What resource dictates project duration. c) What should be the bid price per cubic yard using the economic way to conduct the project?

Expert Solution

Ally Wells answered 1 year ago

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