Task A starts on Day 1 and has a duration of two days. Task B has a duration of two days and starts on Day 3. Task C starts after Task A and has a duration of three days. Task D starts after Task B…

Question

Options

• AFive days
• BSix days
• CSeven days
• DEight days

• A
  4% (1)
• B
  72% (18)
• C
  8% (2)
• D
  16% (4)

Explanation

To find the critical path, trace all possible paths from start to finish and identify the longest one. Task A runs Days 1–2. Task B runs Days 3–4 (starts Day 3 independently). Task C starts after A (Day 3) and runs Days 3–5 (duration 3). Task D starts after BOTH B and C are complete; B finishes Day 4, C finishes Day 5, so D starts Day 6 and runs for 1 day, finishing Day 6. Path 1 (A→C→D): 2 + 3 + 1 = 6 days. Path 2 (B→D): B starts Day 3, so from project start it effectively spans days 3–4 then D on day 6 = 6 days total project duration. The critical path through A→C→D drives the project to completion at Day 6 (six days). Any delay on this path delays the project.

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