Answer to Question #285754 in Discrete Mathematics for V.kathiravan

Question #285754

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

1
Expert's answer
2022-01-11T09:08:36-0500

Solution:

Given: A, D, E can start simultaneously.

A<B,C;C,D<G,F;E,F<H\mathrm{A}<\mathrm{B}, \mathrm{C} ; \mathrm{C}, \mathrm{D}<\mathrm{G}, \mathrm{F} ; \mathrm{E}, \mathrm{F}<\mathrm{H}

Working rule:

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 G,F\mathrm{G}, \mathrm{F} to occur D and C has to completed for activity H to occur E and F has to be completed.

∡\because A, D and E are independent events.


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