In a project network diagram, Activity B has two predecessors: Activity A with an Early Finish (EF) of 10, and Activity C with an EF of 15. What is the Early Start (ES) for Activity B?
10
15
25
5
The Early Start (ES) of an activity is determined by the latest Early Finish (EF) of its predecessors. In this case, Activity B has two predecessors: Activity A with an EF of 10, and Activity C with an EF of 15. Since we need to wait for both predecessors to finish before starting Activity B, we must use the later of the two EF values. Therefore, the ES for Activity B is 15, which is the EF of Activity C. This ensures that both predecessor activities have been completed before Activity B can begin.
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
All plans include the following perks.
Our pricing is simple. Full access to all certifications and exams, for one price.
As many practice tests for as many topics as you want.
Use study mode non-stop, no limits.
No annoying ads and popups. Study without distractions.
Track your scores over time in study mode and report cards.
See how you improve over time, and where you need to focus.
Access our store with even more discounts than before.
Unlimited access to all PBQs and be prepared for the real thing.
Create an account or sign in to access our study materials.