) Draw the network diagram for the project and find the normal and minimum project length b) If the project is to be completed in 21 days with minimum crash cost which activities should be crashed to how many days?

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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The required data for a small project consisting of different activities are given below:

 

 

a) Draw the network diagram for the project and find the normal and minimum project length
b) If the project is to be completed in 21 days with minimum crash cost which activities should be crashed to how many days?

Activ Immedia Normal time (weeks)
Normal Crash
Crash
ity
te
cost
time
cost (Rs.)
Optim Pessi
Most
Predeces
istic
mistic likely
sors
A
None
4
12
5
300
5
400
В
None
10
8
400
6
600
A
4
14
6
400
5
600
D
B
4
20
12
1000
4
1400
800
8
800
B
5
13
6
400
6.
500
DE
3
7
5
1000
1400
F
4
12
8
500
5
700
EFGH
Transcribed Image Text:Activ Immedia Normal time (weeks) Normal Crash Crash ity te cost time cost (Rs.) Optim Pessi Most Predeces istic mistic likely sors A None 4 12 5 300 5 400 В None 10 8 400 6 600 A 4 14 6 400 5 600 D B 4 20 12 1000 4 1400 800 8 800 B 5 13 6 400 6. 500 DE 3 7 5 1000 1400 F 4 12 8 500 5 700 EFGH
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