A production system is set up as an assembly line with three work centers called 1,2,&3 respectively. Each job is processed partially in work center1, then in work center 2 and then completed in work center 3

1. If each job takes 10 minutes what is the rate of output?
2. If it takes 8 minutes per job at work center 1, 10 minutes per job at work center 2 and 6 minutes a job at work center 3, what is the rate of output.
3. If each job takes a random time at each work center, modeled as a Normal variable with a mean of 10 mins and standard deviation of .8 what is the rate of output.
4. How does the presence of buffers impact the first three questions.