a. What is the crash cost per unit time for activity A? b. What is the crash cost per unit time for activity B? c. Which activity should be crashed first to cut one day from the project's duration; how much is added to project cost?

Practical Management Science
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Chapter2: Introduction To Spreadsheet Modeling
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2. Three activities are candidates for crashing on a CPM
network. Activity details are in the table below.
Activity Normal Time Normal Cost Crash Duration Crash Cost
A
9 days
$8,000
7 days
$12,000
B
5 days
$2,000
3 days
$10,000
с
12 days
$9,000
11 days
$12,000
a. What is the crash cost per unit time for activity A?
b. What is the crash cost per unit time for activity B?
c. Which activity should be crashed first to cut one day from
the project's duration; how much is added to project cost?
d. Which activity should be the next activity crashed to cut a
second day from the project's duration; how much is added
to project cost?
e. Assuming no other paths become critical, how much can
this project be shortened at what total added cost?
Transcribed Image Text:2. Three activities are candidates for crashing on a CPM network. Activity details are in the table below. Activity Normal Time Normal Cost Crash Duration Crash Cost A 9 days $8,000 7 days $12,000 B 5 days $2,000 3 days $10,000 с 12 days $9,000 11 days $12,000 a. What is the crash cost per unit time for activity A? b. What is the crash cost per unit time for activity B? c. Which activity should be crashed first to cut one day from the project's duration; how much is added to project cost? d. Which activity should be the next activity crashed to cut a second day from the project's duration; how much is added to project cost? e. Assuming no other paths become critical, how much can this project be shortened at what total added cost?
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