PM$\mathrm{.}61$ 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 $65$ $$1,000$ $$1,200-$

B $53$ $$400$ $$600-$

C $65$ $$400$ $$625-$

D $53$ $$750$ $$1,050$ A

E $63$ $$1,350$ $$3,150$ C

F $32$ $$675$ $$775$ B

What is the duration of the project $($in weeks$)?$

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What is the target duration of the project $($after crashing the project$)?$

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By how many weeks should activity A be crashed?

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By how many weeks should activity B be crashed?

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By how many weeks should activity C be crashed?

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By how many weeks should activity D be crashed?

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By how many weeks should activity E be crashed?

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By how many weeks should activity F be crashed?

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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.$)$

$15150$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.