Project Management Homework-Project Crashing Use the following scenario and data to answer all related questions. A community neighborhood association decided to add a swimming pool to the community activity center. The project is divided into the activities listed in the following table. The activity times and costs, both normal and crashed, are given. To finish the project before the summer season starts, the neighborhood has to make time and cost tradeoffs. If the project needs to be finished in 20 weeks, you are required to formulate a linear programming model to decide about how much to crash for each activity. Activity Immediate Predecesso Normal Gs) Cost (5) Cost (5) Crashed Normal Crashed A 4 2 800 1400 B A 5 2 3000 4200 C 6 4 2500 2800 D A, C 7 5 1600 2200 E B, C 5 2 1200 2100 F D 4 3 1300 2100 G E, F 5 3 8200 9000 To answer the following questions, you may want to use the last column of the following table to compute the cost of crashing an activity by one week. Immediate Activity Predecesso Normal rs) Crashed Cost (5) Cost (5) Cost/Week Normal Crashed A 4 2 BOO 1400 B A 5 2 3000 4200 CDEFG 6 4 2500 2800 A, C 7 5 1600 2200 B, C 5 2 1200 2100 D 4 3 1300 2100 E, F 5 3 8200 9000 The cost of crashing activity D by one week is О О о 2200 1600 600 300 none of the above Question 4 The appropriate objective function should be min 300уA +400уB +150yc+300YD + 300YE+800y+400yG max 300yдA +400уB + 150уc +300yD + 300yE+800y + 400yG min 300x400xB + 150x + 300гp + 300g + 800xp + 400xc max 300 +400B + 150x + 300cp + 300g + 800xp + 400xc None of the above.

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Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Project Management Homework-Project Crashing
Use the following scenario and data to answer all related questions.
A community neighborhood association decided to add a swimming pool to the community activity center.
The project is divided into the activities listed in the following table. The activity times and costs, both normal and crashed, are given.
To finish the project before the summer season starts, the neighborhood has to make time and cost tradeoffs.
If the project needs to be finished in 20 weeks, you are required to formulate a linear programming model to decide about how much to crash for each activity.
Activity
Immediate
Predecesso Normal
Gs)
Cost (5)
Cost (5)
Crashed
Normal
Crashed
A
4
2
800
1400
B
A
5
2
3000
4200
C
6
4
2500
2800
D
A, C
7
5
1600
2200
E
B, C
5
2
1200
2100
F
D
4
3
1300
2100
G
E, F
5
3
8200
9000
To answer the following questions, you may want to use the last column of the following table to compute the cost of crashing an activity by one week.
Immediate
Activity
Predecesso Normal
rs)
Crashed
Cost (5)
Cost (5)
Cost/Week
Normal Crashed
A
4
2
BOO
1400
B
A
5
2
3000
4200
CDEFG
6
4
2500
2800
A, C
7
5
1600
2200
B, C
5
2
1200
2100
D
4
3
1300
2100
E, F
5
3
8200
9000
Transcribed Image Text:Project Management Homework-Project Crashing Use the following scenario and data to answer all related questions. A community neighborhood association decided to add a swimming pool to the community activity center. The project is divided into the activities listed in the following table. The activity times and costs, both normal and crashed, are given. To finish the project before the summer season starts, the neighborhood has to make time and cost tradeoffs. If the project needs to be finished in 20 weeks, you are required to formulate a linear programming model to decide about how much to crash for each activity. Activity Immediate Predecesso Normal Gs) Cost (5) Cost (5) Crashed Normal Crashed A 4 2 800 1400 B A 5 2 3000 4200 C 6 4 2500 2800 D A, C 7 5 1600 2200 E B, C 5 2 1200 2100 F D 4 3 1300 2100 G E, F 5 3 8200 9000 To answer the following questions, you may want to use the last column of the following table to compute the cost of crashing an activity by one week. Immediate Activity Predecesso Normal rs) Crashed Cost (5) Cost (5) Cost/Week Normal Crashed A 4 2 BOO 1400 B A 5 2 3000 4200 CDEFG 6 4 2500 2800 A, C 7 5 1600 2200 B, C 5 2 1200 2100 D 4 3 1300 2100 E, F 5 3 8200 9000
The cost of crashing activity D by one week is
О
О
о
2200
1600
600
300
none of the above
Question 4
The appropriate objective function should be
min 300уA +400уB +150yc+300YD + 300YE+800y+400yG
max 300yдA +400уB + 150уc +300yD + 300yE+800y + 400yG
min 300x400xB + 150x + 300гp + 300g + 800xp + 400xc
max 300 +400B + 150x + 300cp + 300g + 800xp + 400xc
None of the above.
Transcribed Image Text:The cost of crashing activity D by one week is О О о 2200 1600 600 300 none of the above Question 4 The appropriate objective function should be min 300уA +400уB +150yc+300YD + 300YE+800y+400yG max 300yдA +400уB + 150уc +300yD + 300yE+800y + 400yG min 300x400xB + 150x + 300гp + 300g + 800xp + 400xc max 300 +400B + 150x + 300cp + 300g + 800xp + 400xc None of the above.
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