The weekly OAC agenda includes this unresolved item: an activity has early start day 52 and late start day 101. What total float is shown?
Correct Answer
A) 49 days
The calculation gives 49 days for the stated float. Other choices: the distractors come from omitting an adjustment, using the wrong rate, or applying a rounded shortcut for calculation item 228.
Why This Is the Correct Answer
The calculation gives 49 days for the stated float.
Why the Other Options Are Wrong
Option B: 48 days
float, choice a: 48 days uses the wrong side of the schedule subtraction or omits one duration component.
Option C: 50 days
float, choice c: 50 days is wrong because 50 days uses the wrong side of the schedule subtraction or omits one duration component.
Option D: 52 days
float, choice d: 52 days uses the wrong side of the schedule subtraction or omits one duration component.
Memory Technique
Remember float as "base, adjustment, final unit"; the last unit should read 49 days.
Reference Hint
Open Construction Jobsite Management, 5th Ed.; use the index entry or section for "float calculation" to confirm that The calculation gives 49 days for the stated float.
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