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Tom, a director of Management Resources, Inc., is in the process of designing a program that his customers can use in the job finding process. Some of the activities include preparing resumes, writing letters, making appoints, researching companies, and so on. Some of the information on the activities is shown in the following table:
Days
Immediate Predecessors
Activity
a
b
c
A
8
10
12
-
B
6
7
9
C
3
4
D
20
30
E
F
11
B, D, E
G
H
15
16
I
13
J
G, H
K
I, J
L
1
2
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