In a project, Activity B is dependent on the completion of Activity A. If Activity A has an Early Finish (EF) of Day 5 and Activity B has a duration of 3 days, what is the Early Start (ES) of Activity B?
Day 5
Day 6
Day 7
Day 8
The Early Start (ES) of an activity in CPM is determined by the Early Finish (EF) of its predecessor. Since Activity B depends on the completion of Activity A which finishes on Day 5, Activity B can start the next day. Therefore, the ES of Activity B is Day 6. Calculating ES involves recognizing that an activity's early start is the earliest time its dependencies allow it to begin.
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