Question: PM.61 Rob Smith is managing a small project at Boston University. He is under pressure to shorten the overall duration of the project by 4

PM.61 Rob Smith is managing a small project at Boston University. He is under pressure to shorten the overall duration of the project by 4 weeks and he wants to do so at the lowest cost possible. In order to meet this objective a number of activities must be crashed.

Activity Normal Time (weeks) Crashed Time (weeks) Normal Cost Crashed Cost Predecessor(s)
A 6 5 $900 $1,200 -
B 5 3 $400 $700 -
C 6 5 $450 $675 -
D 5 3 $750 $1,150 A
E 6 3 $1,200 $2,100 C
F 3 2 $675 $875 B

What is the total cost of crashing the project 4 weeks (just the additional cost, not total project cost)? (Display your answer to two decimal places.)

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