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CAPM Practice: Demonstrate an understanding of a project management plan schedule

Question 15 of 85 in Demonstrate an understanding of a project management plan schedule

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A project manager identifies that an activity has a duration of 10 days, early start of day 15, late start of day 18, early finish of day 24, and late finish of day 27. What is the total float?

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Correct answer: 3 days

Explanation

Total float = Late Start - Early Start = 18 - 15 = 3 days (also = Late Finish - Early Finish = 27 - 24 = 3 days). This activity can be delayed up to 3 days without delaying the project end date. It has 3 days of schedule flexibility.

**Why not A:** Six days would require a Late Start of 21 or a Late Finish of 30, which contradicts the given values. The calculation LS - ES = 18 - 15 = 3 days, not 6 days.

**Why not C:** Ten days is the activity's duration, not its float. Float measures schedule flexibility (the difference between late and early dates), while duration measures how long the activity takes to complete.

**Why not D:** Zero days of float would mean the activity is on the critical path, but this activity has a 3-day difference between its late and early start dates (18 - 15 = 3), confirming it has schedule flexibility and is not on the critical path.

Key Concept

This question covers Demonstrate an understanding of a project management plan schedule under Demonstrate an understanding of a project management plan schedule (Predictive, Plan-Based Methodologies).

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