A copy business operates with a single copier.It is now the beginning of the fourth (4^th) hour.The jobs listed in the following table are waiting to be processed.The due date is the end of that hour.For example, Job 1 is due at the end of hour 42.

Job

Job Processing Time (Hours)

Due Date (in Hours)from Time 0

1

20

42

2

18

24

3

25

80

4

32

90

5

30

65

a) Determine the sequence of jobs using the following rules as these were defined during our weekly assignments:

Critical ratio rule (CR)

Slack time

b) Prioritize (rank) the rules used in a) based on average flow time measured from now.

c) Prioritize (rank) the rules used in a) based on average lateness with no credit for completing any job early.

d) Prioritize (rank) the rules used in a) based on average early time with no penalty for completing any job late (in other words, the early time would be set at zero if a job is late).