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A project has three critical paths: A-B-C-D-E, A-G-H-E, and A-F-I-E. Crashing costs (in thousands, per week) for each activity is listed below: Activity Crashing 1st

A project has three critical paths: A-B-C-D-E, A-G-H-E, and A-F-I-E. Crashing costs (in thousands, per week) for each activity is listed below:

Activity Crashing 1st time Crashing 2nd time Crashing 3rd time
A 44 1 4
B 25 2 1
C 39 4 2
D 8 10 2
E 34 4 3
F 33 30 3
G 34 12 2
H 4 8 3
I 4 8 4

What is the total cost of reducing this project by two weeks?

42

b.78

c.60

d.50

e.35

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