Project Management Fundamentals and Core Concepts →mediumMultiple ChoiceObjective-mapped

CAPM Practice Question: Project Management Fundamentals and Core Concepts

Exhibit

Refer to the exhibit.

Task A: duration 5 days, predecessor: none
Task B: duration 3 days, predecessor: A
Task C: duration 4 days, predecessor: A
Task D: duration 2 days, predecessor: B, C

Refer to the exhibit. What is the total float of Task B?

⚠ Common exam trap

The trap here is that candidates often mistakenly assume all tasks with dependencies have zero float, or they incorrectly calculate the path duration by omitting a task or misreading the diagram, leading them to pick 0 days or an inflated float value.

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

✓

1 day

Task B has a total float of 1 day because it lies on a non-critical path. The critical path (A-C-D) has a duration of 11 days, while the path containing Task B (A-B-D) has a duration of 10 days. Total float is calculated as the difference between the duration of the critical path and the duration of the path containing the task, which is 11 - 10 = 1 day.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✓
1 day
Why this is correct
The critical path is A-C-D (11 days). Path A-B-D is 10 days, so float = 1 day.
✗
3 days
Why it's wrong here
This is the duration of Task B, not its float.
✗
2 days
Why it's wrong here
The difference in path durations is 1 day.
✗
0 days
Why it's wrong here
Task B is not on the critical path.

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CAPM Practice Question: Project Management Fundamentals and Core Concepts

Exhibit

Why each option matters

Option-by-option breakdown

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