Construction Planning and Management
Optimistic time, most likely time and pessimistic times for the activities of a network in the given figure are written above their arrows. If the contractual obligation time for the project is 75, the latest occurrence time for the event 2, is

20
25
35
15

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Construction Planning and Management
Earliest finish of an activity is always

Greater than earliest event time of the following node
Less than or equal to earliest event time of the following node
Less than earliest event time of the following node
Greater than or equal to earliest event time of the following node

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