Klassen Toy Company, Inc., assembles two parts (parts1 and 2): Part 1 is first processed at workstation A for 15 minutes per unit and then processed at workstation B for 10 minutes per unit. Part 2 is simultaneously processed at workstation C for 20 minutes per unit. Work stations B and C feed the parts to an assembler at workstation D, where the two parts are assembled. The time at workstation D s 15 minutes.
a) What is the bottleneck of this process?
b) What is the hourly capacity of the process?