Answers
Answer A:
Idle time =(1-U)=(1-2/3)(1/3)*8hour=160min-Page read 160min *a1page/min=160pages
Answer B:
Waiting time=2 min*[2/3 / (1-2/3)]*[(12+0.52)/2]=2.5 min
Answer C:
The average total time a line is used per customer=average wait time + average processing time.
· in this case, the average total time per customer =2.5+2=4.5 minutes per customer.
· there is an average of 20 customers per hour so the average number of minutes per hour=20*4.5=90 minutes.
· thus, the total per hour chaege=(90/60)*$5=7.50 per hour or $60 for 8 hours.
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