please answer question 10

solved problem

10. For the Solved Problem in this chapter involving processing driver's licenses at the Archer County Courthouse, if 40 drivers are to be processed each hour, how many clerks and typists should be hired assuming an 90 percent target utilization rate? SOLVED PROBLEM 10.3 The process for renewing a driver's license at the Archer County Courthouse is as follows. First, the clerk fills out the application, then the clerk takes the driver's picture and finally a typist enters the info Into the computer system and processes the new license. It takes an average of five minutes to fill out an application, one minute to take a picture, and seven minutes to process the new license. If there are two clerks and three typists, where will the bottleneck in the system be? How many drivers can be processed in one hour if both the clerks and typists work at an 80 percent utilization rate? The first two stages share the resources of the clerks; we assume the two clerks are cross-trained and pool their efforts. The service rate for clerks (60 min/ hour)/(5+1 min/driver) 10 drivers/hour. Using Equations 7.2 or 10.4, we can find the capacity of the clerks in terms of the number of drivers per hours can process: Utilization (U) - 08-> Capacity Service Rate x Number of Seve 0.8 Capacity 10 x 2 or Capacity= 16 drivers/hour For typists, the service rate is 60/7-8.57 drivers Again, using Equation 10.4, we have Capacity or Capacity (0.8) (25.7) 8.57 x 3 = = 20.6 drivers/hour Because these processes occur in series, we see that the capacity of the system is limited by the clerks (the bottleneck), so the total process output is 16 drivers/hou Grill utilis Fryer ut Soft dris Th new re Assurs semb hour 85 F that be U