Question: Table given below shows the precedence relations, activity time under normal condition, activity time when activity is crashed, cost under normal condition, and cost when
Table given below shows the precedence relations, activity time under normal condition, activity time when activity is crashed, cost under normal condition, and cost when activity is crashed. You are asked to crash this project by 3 weeks from the normal completion time. Write down
- What activities must be crashed and by how many weeks.
- The minimum cost to crash the project by 3 weeks.
| Activity | Immediate Predecessor(s) | Time (weeks) | Cost ($) | ||
| Normal | Crash | Normal | Crash | ||
| A | - | 2 | 2 | 12000 | 12000 |
| B | A | 4 | 2 | 15000 | 18000 |
| C | A | 5 | 1 | 18000 | 24000 |
| D | B, C | 4 | 3 | 25000 | 27000 |
| E | B | 3 | 1 | 12000 | 14000 |
| F | D | 3 | 2 | 10000 | 13500 |
| G | E | 2 | 2 | 32000 | 32000 |
| H | C | 3 | 1 | 15000 | 16000 |
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