Problem 2

The Victoria Theater shows vintage movies. Customers arrive at the theater line at the rate of 100 per hour. The ticket window seller averages 30 seconds per customer, which includes placing validation stamps on customers parking lot receipts and punching their frequent watcher cards. (Unfortunately, because of these added services, many customers dont get in until after the feature has started.) Use Exhibit 7.13.

What would be the customer time in the system if a second window was opened with each server doing all three tasks? (Hint - this is a different service model) (Use closest / value from Exhibit 7.13. Do not round intermediate calculations. Round your answer to 3 decimal places.)