September 28 & 29, 2020 | Virtual
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If I am not mistaken, this is a Finish to Start relationship because C can’t start before both A and B are complete. If no other conditions exist between A and B, it also creates a convergence node as the start of C is tied with the finish of both A and B with a lead time from A of two weeks.
There is no information about the starts of A or B. Both need to finish before C can start (and A has a lag of 2 weeks for that).
So I would go with D, finish to finish.
I have to disagree. If C cannot finish before A and B finish then that’s a Finish to Finish relationship but the situation is C can’t start before A and B finish so it’s a Finish to Start relationship.
Info about the start of A and B is irrelevant for what the situation is asking for.
it is a finish to start relationship between A and C as well B and C.
Between A and B it is not, but that is the question.
Rami Kaibni, I also gave the same answer as you mentioned but PMI goes with Thomas.
Thomas, I am still not clear why Finish to Finish is the answer when no information of A and B relationship is given. B can finish after A or A can finish after B or Both can start or finish at the same time.
well, there is information given about A and B, though indirectly (both are predecessors of C). If you bring this together and since there is no information about the starts of either A or B, the only thing you can conclude is about the finishing of A and B.
It is not a perfect logical conclusion though. I did not succeed to find a f2f clause that describes their relationship without considering C. For example '
B has to finish when A finished plus 2 weeks' is not true.
But with any question, the correct answer could be the only one that is not plain wrong.
I stand corrected, I totally missed that. For some reason I thought the question is asking about the relationship between C and (A/B).
The relationship between A and B given the current situation is a Finish to Finish because that is the only answer that makes sense given the info about the start of C. However, the question is a bit vague.
Thank you for correcting me.
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