Construction Planning and Management
In the given figure, the network of a project represents

Activity of an excavation of a footing
Activity of an excavation which starts at event No. 1 and ends at even No. 2
None of these
Activity of excavation which takes 8 units of time

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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

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

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