I am practicing exam nowadays to get PMP exam using famous exam simulator but i found question i cannot determine how they draw the diagram table below :

enter image description here

& they draw it like the following :

enter image description here

my question is how the End have 2 duration & how i can calculate critical path??

Thanks in advance

  • Looks like the estimate is some floating time? Otherwise I don't understand why a task should have two durations either... Is there any additional description?
    – Tob
    Dec 22 '15 at 21:51

Critical path follows the longest duration path, which is Start->Task 3->Task 5->End.

End appears twice in the table since it follows each of Tasks 2 and 5, which are independent branches. End appears only once in the graph, as the terminal state, as you would expect.

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