Rob Smith is managing a small project at Boston University. He is under pressure to shorten the duration of the project by 4 days and he wants to do so at the lowest cost possible.
By how many days should each activity be crashed to reduce the project by 4 days?
|
Activity
|
Normal Time (days)
|
Crashed Time (days)
|
Normal Cost
|
Crashed Cost
|
Predecessor(s)
|
|
A
|
6
|
5
|
$800
|
$1,100
|
-
|
|
B
|
5
|
3
|
$300
|
$500
|
-
|
|
C
|
6
|
5
|
$600
|
$650
|
-
|
|
D
|
5
|
3
|
$750
|
$1,500
|
A
|
|
E
|
6
|
3
|
$1,200
|
$1,650
|
C
|
|
F
|
3
|
2
|
$400
|
$600
|
B
|
16 Crash activity A by days
17 Crash activity B by days.
18 Crash activity C by days.
19 Crash activity D by days.
20 Crash activity E by days.
21 Crash activity F by days.
22 What is the total cost of crashing the project 4 days (just the additional cost, not total project cost)?