Construct the network who's activity and the relationship Activity:A,D,E can start simultaneously Activity:B,C>A;G,F>D,C;H>E,F
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Given: A, D, E can start simultaneously.
A<B, C implies activity A is the immediate predecessor of activities B and C .
i.e., for activities B and C to occur, activity ' A ' has to be completed.
Similarly, for activities to occur D and C has to completed for activity H to occur E and F has to be completed.
A, D and E are independent events.