The Bijou Theatre in Hermosa Beach, California shows vintage movies. Customers reach at the theatre line at the rate of 100 per hour. The ticket seller be around 30 seconds per customer, which comprises placing validation stamps on customers' parking lot receipts as well as punching their frequent watcher cards. For the reason that of these added services numerous customers don't get in until after the feature has started.
a. Explain what is the average customer time in the system?
b. What would be the consequence on customer time in the system of having a second ticket taker doing nothing but validations as well as card punching, thereby cutting the average service time to 20 seconds?
c. Explain would system waiting time be less than you found in b if a second window was opened with each server doing all three tasks?