CAPM Practice Question: Project Management Fundamentals and Core Concepts
Exhibit
Activity A: Duration 5 days, Predecessor: None Activity B: Duration 3 days, Predecessor: A Activity C: Duration 4 days, Predecessor: A Activity D: Duration 6 days, Predecessor: B, C
Refer to the exhibit. What is the duration of the critical path?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
15 days
The critical path is A -> C -> D with a total duration of 5 + 4 + 6 = 15 days. The other path A -> B -> D is 5+3+6=14 days.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
15 days
Why this is correct
Correct calculation of longest path.
- ✗
9 days
Why it's wrong here
Incorrect sum.
- ✗
14 days
Why it's wrong here
This is the duration of the non-critical path.
- ✗
12 days
Why it's wrong here
Incorrect sum of durations.
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