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

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 Crashed Time Normal Crashed Predecessor(s) (weeks) (weeks) Cost Cost A 6 5 $900 $1,100 $400 $700 6 5 $400 $475 $750 $1,150 A $1,350 $3,150 2 $675 $875 B B 5 co D 5 3 3 E 6 F 3 What is the duration of the project (in weeks)? What is the target duration of the project (after crashing the project)? By how many weeks should activity A be crashed? By how many weeks should activity B be crashed?| By how many weeks should activity C be crashed? By how many weeks should activity D be crashed? By how many weeks should activity E be crashed? By how many weeks should activity F be crashed? 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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