Question: stion 16 6.5 points TWO (2) service windows are open in a bank. Customers arrive at the rate of 35 per hour, get in one

stion 16 6.5 points TWO (2) service windows are open in a bank. Customers arrive at the rate of 35 per hour, get in one walting line, and go to the first available window at the head of the waiting line. Each clerk takes an average of 3 minutes to service a customer How long is the average waiting time (in minutes)? 7.80 11.80 9.80 13.80
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