Consider a Three Sequentially Stepped Process Named as Process A

Multiple Choice

Consider a three sequentially stepped process named as Process A, Process B and Process C.Input comes into Process A.Output form A goes into Process B.Output from B goes into Process C.Output of C is the final output.Suppose that it takes 2 minutes per unit in Process A, 3 minutes per unit in Process B and 1 minute per unit in Process C.What will be maximum steady state output from this system?

A) 30 per hour
B) 60 per hour
C) 20 per hour
D) 10 per hour
E) cannot tell since it depends on the input rate.