Suppose we had a project with only eight activities, as ilustrated in the next t
ID: 453403 • Letter: S
Question
Suppose we had a project with only eight activities, as ilustrated in the next table. The table also shows our calculated normal activity durations and costs and crashed durations and their costs. As a project manager, you have been asked to do full crashing.
Activity
Normal
Duration Cost
Crash
Duration Cost
A
5 days
$ 1,000
3 days
$ 1,500
B
7 days
700
6 days
1,000
C
3 days
2,500
2 days
4,000
D
5 days
1,500
5 days
1,500
E
9 days
3,750
6 days
9,000
F
4 days
1,600
3 days
2,500
G
6 days
2,400
4 days
3,000
H
8 days
9,000
5 days
15,000
TOTAL COST=
22,450
$ 37,500
Activity
Normal
Duration Cost
Crash
Duration Cost
A
5 days
$ 1,000
3 days
$ 1,500
B
7 days
700
6 days
1,000
C
3 days
2,500
2 days
4,000
D
5 days
1,500
5 days
1,500
E
9 days
3,750
6 days
9,000
F
4 days
1,600
3 days
2,500
G
6 days
2,400
4 days
3,000
H
8 days
9,000
5 days
15,000
TOTAL COST=
22,450
$ 37,500
Explanation / Answer
PRecedence relationship between the activities is not provided, in absence of which, network diagram cannot be drawn. however, if all the activities are in series, then the total duration of the project completion time is 47 , and project duration after full crash is 34 and the cost is 37500.
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