Consider a single station processing center. The machine has a processing time of 45 seconds, and the operator has a service time of 98 seconds. The machine has a storage capacity of 100 parts and a repositioning time of 1 second. The machines must be shut down for 30 seconds each time they are served by the operator (this is part of the 98 seconds to service a machine). On average it takes the operator 45 seconds to move between machines.

1. How much time is required to process 1 part?
2. What is the unattended time for the station? (This is the Tm: machine time)
3. What is the ideal number of machines a single operator can manage?