Construction Planning and Management
Total float for any activity is defined as the difference between

Its latest finish time and earliest start time for its successor activity
Its latest start time and earliest finish time
Its latest start time and earliest start time
Its earliest finish time and earliest start time for its successor activity

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Construction Planning and Management
If the optimistic time, most likely time and pessimistic time for activity A are 4, 6 and 8 respectively and for activity B are 5, 5.5 and 9 respectively, then

expected time of activity A is greater than the expected time of activity B
expected time of both activities A and B are same
None of these
expected time of activity B is greater than the expected time of activity A

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