Activities Predecessor Time accelerated | Cost($) a m CN CA A 4 6 8. 4 1000 1900 -- В 8 16 7 1000 1800 -- A 4 2 1500 2700 8 10 24 8. 2000 3200 E C,D 7 10 13 7 5000 8000 F C,D 4 8. 4 3000 4100 G C,D 4 6. 20 8000 10250 F 4 8. 4 5000 6400 F 4 14 4 10000 12400 J E,H 3 4 4000 4400 K G 2 4 6. 3 5000 5500 L E,H 12 16 20 10 18000 30000 M IJ,K 14 15 28 12 22000 30000

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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The product development group at “Griffin” Company has already worked on new computer software products that has potential to know a large market share. Via an outside source, London Management has learned that a competitor is working to bring a similar product to market. As a result, London's top management increased its pressure on the product development group. Group leaders have turned to CPM / PERT as an aid to scheduling remaining activities before new products can be brought to market. The estimated time of activity in a day is as follows

Question:

  1. Create an initial network
  2. Find the cost and the duration
  3. Determine the path and critical activities

 

Activities
Predecessor
Time
accelerated
Cost($)
a
m
b
CN
СА
A
4
8
4
1000
1900
--
В
6
8
16
7
1000
1800
--
C
A
2
4
6.
2
1500
2700
В
8
10
24
2000
3200
E
C,D
7
10
13
7
5000
8000
F
C,D
4
6.
8
4
3000
4100
C,D
4
6.
20
8000
10250
H
4
8
4
5000
6400
F
4
14
4
10000
12400
J
E,H
3
4
5
4000
4400
K
G
4
6.
5000
5500
L
E,H
1,J,K
12
16
20
10
18000
30000
14
15
28
12
22000
30000
Transcribed Image Text:Activities Predecessor Time accelerated Cost($) a m b CN СА A 4 8 4 1000 1900 -- В 6 8 16 7 1000 1800 -- C A 2 4 6. 2 1500 2700 В 8 10 24 2000 3200 E C,D 7 10 13 7 5000 8000 F C,D 4 6. 8 4 3000 4100 C,D 4 6. 20 8000 10250 H 4 8 4 5000 6400 F 4 14 4 10000 12400 J E,H 3 4 5 4000 4400 K G 4 6. 5000 5500 L E,H 1,J,K 12 16 20 10 18000 30000 14 15 28 12 22000 30000
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