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	5	3	$900	$1,500	-
B	6	5	$400	$450	-
C	6	5	$600	$825	-
D	3	2	$850	$1,050	A
E	6	3	$1,350	$2,700	C
F	5	3	$825	$1,225	B

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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