Vehicles arrive at a recreational park booth at a uniform deterministic rate of 4 vehicle per minute.?

Vehicles arrive at a recreational park booth at a uniform deterministic rate of 4 vehicle per minute. If uniform deterministic processing of vehicles (collecting fees) begins 30 minutes after the first arrival and the total delay is 3600 vehicle-minute, how long after the arrival of the first vehicle will it take... show more Vehicles arrive at a recreational park booth at a uniform deterministic rate of 4 vehicle per minute. If uniform deterministic processing of vehicles (collecting fees) begins 30 minutes after the first arrival and the total delay is 3600 vehicle-minute, how long after the arrival of the first vehicle will it take the queue to dissipate?
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