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Question
Three critical path 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 |
| X | 8 days | $6,000 | 6 days | $8,000 |
| Y | 3 days | $1,800 | 2 days | $2,400 |
| Z | 12 days | $5,000 | 9 days | $7,700 |
a. What is the crash cost per unit time for each of the three activities?
b. Which activity should be crashed first to cut one day from the project's duration; how much is added to project cost?
c. 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?
Answer
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Weight Day
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Package 2
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23
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