I have question-related to industrial management, actually, it is a problem on arrow on activity network diagram. I tried to solve the question my self, below are the images. If I did any mistake kindly let me know.
The duplicate activity H should start from the end of activity G.
otherwise you are stating that the duplicate of H can only start once H is completed...
The duplicate of activity K starts from the end of activity F.
When checking these diagrams, you just have to read the story in the diagram back to match the information in the table. If you list some of those paths you find you have:
And that is the issue, this is what you should have:
ABEGHMN and ABCFKMN