Assume that we are considering the completion of a project one day earlier than the original plan. This project includes five activities and their normal and crash data are as follow:
Activity | Precedence | Duration, Days (normal, crash) | Cost (normal, crash) |
a | – | 3, 2 | $40, $80 |
b | a | 2, 1 | $20, $80 |
c | a | 2, 2 | $20, $20 |
d | a | 4, 1 | $30, $120 |
e | b | 3, 1 | $10, $80 |
Note that partial crashing is always allowed.
In this project, the critical path is a-b-e. Based on the information above, what is the best way to complete this project one day earlier? (0.5) How much does it cost? (0.5) Show all your work.
