I came across the same question. From the network diagram node, i know its answer should be 15. But why is it 16?
What is PMI specific answer for this? Why do we add a "1" to activity duration? Because when i draw my network diagram for my projects, for e.g. if duration is 5 days and activity LS is 20th May i consider LF to be 24th and not 25th May.
I'd really like the answer to this as well. You only get one correct answer on the test. I use Rita's book as well. Do we use base "0" or base "1" for calculations? The can't both be correct. Which one does PMI want?
Kindly take look at this question and clarify accordingly:
The activity “Ship Container” in your network diagram has an early
start of day 17, a late start of day 22 and a late finish of day 37. What is the activity duration?
A.) 15 days
B.) 16 days - Correct Answer
C.) 59 days
D.) 14 days
Based on the Formula guide the formula says Activity Duration=EF - ES + 1 or LF - LS + 1..when translated AD= 37-22+1 = 16. Based on Rita 6th Edition the answer will be 15 because ES = 0.
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