Please show the calculation process !

[25 points] Consider a process that consists of three activities. Activity 1 has a processing time of 75 minutes and has two workers assigned to it. Activity 2 follows activity 1 and has a processing time of 45 minutes with one worker assigned to it. Finally, Activity 3 follows activity 2 and has a processing time of 60 minutes with one worker assigned to it. a) [9 points] What is the hourly capacity of the activities? Which activity is the bottleneck? What is the hourly capacity of the process? b) [8 points] Suppose we have one more worker that can perform any activity. Which activity should this worker perform? Which activity is the bottleneck now? What is the hourly capacity of the process with this additional worker? c) [8 points] Consider the original question with a total of four workers and suppose that we could move 15 minutes of work from any one of the activities to another. How should we reallocate these 15 minutes? Which activity is the bottleneck now? What is the hourly capacity of the process now