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OPERATION RESEARCH 3 please understandable solution Q3. A Bank always has two tellers on duty. Customers arrive to receive service from a teller at a

OPERATION RESEARCH 3
please understandable solution image text in transcribed
Q3. A Bank always has two tellers on duty. Customers arrive to receive service from a teller at a mean of 40 per hour. A teller requires an average of 2 minutes to serve a customer. When both tellers are busy, an arriving customer joins a single line to wait for service. The average waiting time is 1 minute. Find measures of performances, W, L, L. (18 pts) Use Hint: L=L+/,W=L/ ,W4=L9/

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