A project activity has an Early Start (ES) of Day 5 and a Late Start (LS) of Day 8. What is the total float for this activity?
5 days
8 days
3 days
2 days
The correct answer is 3 days. Float, also known as slack, is the amount of time an activity can be delayed without impacting the project's overall schedule. It can be calculated using two formulas:
In this case, we are given the Early Start (ES) and Late Start (LS) values. Using the first formula:
Float = LS - ES Float = 8 - 5 Float = 3 days
This means the activity can be delayed by up to 3 days without affecting the project's critical path or end date. Understanding float is essential for project managers to prioritize tasks, allocate resources efficiently, and manage schedule risks.
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