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The activities needed to replace a broken window pane are given below.   Activity Duration (in mins) Preceding activities A       Order glass 10 - B       Collect glass 30 A C       Remove broken pane 15 B,D D       Buy putty 20 - E        Put putty in frame 3 C F        Put in new frame 2 E G       Putty outside and smooth 10 F H       Sweep up broken glass 5 C I         Clean up 4 all   (a)  Construct an activity network for the project.                      (b)  What is the minimum time to complete the replacement?     (c)  Show the Earliest Start Time and Latest Finish Time of each activity.

The activities needed to replace a broken window pane are given below.   Activity Duration (in mins) Preceding activities A       Order glass 10 - B       Collect glass 30 A C       Remove broken pane 15 B,D D       Buy putty 20 - E        Put putty in frame 3 C F        Put in new frame 2 E G       Putty outside and smooth 10 F H       Sweep up broken glass 5 C I         Clean up 4 all   (a)  Construct an activity network for the project.                      (b)  What is the minimum time to complete the replacement?     (c)  Show the Earliest Start Time and Latest Finish Time of each activity.

Practical Management Science
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 activities needed to replace a broken window pane are given below.

 

Activity

Duration (in mins)

Preceding activities

A       Order glass

10

-

B       Collect glass

30

A

C       Remove broken pane

15

B,D

D       Buy putty

20

-

E        Put putty in frame

3

C

F        Put in new frame

2

E

G       Putty outside and smooth

10

F

H       Sweep up broken glass

5

C

I         Clean up

4

all

 

(a)  Construct an activity network for the project.                     

(b)  What is the minimum time to complete the replacement?    

(c)  Show the Earliest Start Time and Latest Finish Time of each activity.   

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