A contractor has ten jobs awaiting processing at a bottleneck workstation. The day the job was received, its processing time and due date are given in the following table. It is now the beginning of day 13.

job	day job was received	job processing time (days)	job due day
A	1	6	41
B	2	10	25
C	7	2	19
D	8	9	31
E	9	1	18

Calculate the average throughput time and, for each job, the number of days overdue using the following priority sequencing rules:

(a) First-come-first-serve

(b) Earliest due date

(c) Shortest processing time

(d) Which rule should be used, in your opinion? Why?

(e) The client waiting for job B has informed the contractor that its due date is now day 33. How will this information affect your choice of priority rule?