Benny’s Arcade has six video game machines. The average time between machine failures is 50 hours. Jimmy, the main- tenance engineer, can repair a machine in 15 hours on aver- age. The machines have an exponential failure distribution, and Jimmy has an exponential service-time distribution. a. What is Jimmy’s utilization? b. What is the average number of machines out of service, that is, waiting to be repaired or being repaired? c. What is the average time a machine is out of service?

Benny’s Arcade has six video game machines. The average time between machine failures is 50 hours. Jimmy, the main- tenance engineer, can repair a machine in 15 hours on aver- age. The machines have an exponential failure distribution, and Jimmy has an exponential service-time distribution. a. What is Jimmy’s utilization? b. What is the average number of machines out of service, that is, waiting to be repaired or being repaired? c. What is the average time a machine is out of service?

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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