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The project activities, precedence relationships and durations are described in the table. The critical path of the project is Activity | Precedence | Duration (in days) P | - | 3 Q | - | 4 R | P | 5 S | Q | 5 T | R, S | 7 U | R, S | 5 V | T | 2 W | U | 10

1. P-R-T-V
2. Q-S-T-V
3. P-R-U-W
4. Q-S-U-W

Correct answer: Q-S-U-W

Solution

The critical path is the longest sequence of activities that determines the shortest time to complete the project. In this case, the path Q-S-U-W has the longest total duration of 24 days, making it the critical path.

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