Question: You have collected the data for a time-cost CPM scheduling model analysis. The time is in days and the project direct costs are given here.
You have collected the data for a time-cost CPM scheduling model analysis. The time is in days and the project "direct costs" are given here.
| Activity | Immediate Predecessor | Normal Time | Crash Time | Normal Cost (Direct) | Crash Cost (Direct) | ||||
| A | None | 3 | 2 | $300 | $400 | ||||
| B | A | 3 | 3 | $100 | $100 | ||||
| C | A | 1 | 1 | $200 | $200 | ||||
| D | B and C | 3 | 2 | $400 | $550 | ||||
| E | D | 2 | 1 | $500 | $900 | ||||
| F | E | 3 | 3 | $200 | $200 | ||||
| G | F | 2 | 2 | $100 | $100 | ||||
The indirect costs for the project are determined on a daily duration basis. If the project lasts 16 days, the total indirect costs are $400; 15 days, they will be $250; 14 days, they will be $200; and 13 days, they will be $100. At what day do we achieve the lowest total project cost (i.e., direct plus indirect costs)?
Multiple Choice
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13 days
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14 days
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12 days
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16 days
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15 days
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