Question

please answer from a until i with the solving steps

CHAPTER 13 / Developing and implementing Effective Accounting Information Systems 431 14 FIGURE 13-11 PERT network diagram for a systems implementation project.

Answer 1

		a. Before activity to begin activity B should be completed.
		b.Activities A,E or B,F should be completed to begin activity G.
		c.All the activities that is Activity A,B,C,D,E,F,G,H,I should be completed in order to begin activity J.
		d.Five Paths through the network are
		1.1→4→5→6→7→8
		2.1→4→5→7→8
		3.1→2→5→6→7→8
		4.1→2→5→7→8
		5.1→2→3→7→8
		e.activity F can be completed only after completing activity b which takes 14.
		so earliest start time for activity F is 14
		f.Activity G can be completed in two paths and the time taken are
		path1. 1→2→5 this path takes 11(4+7)
		path2. 1→4→5 this path takes 18(11+1)
		so earliest start time of Activity G is 11 (Path1)
		g.five paths are possible for J and time taken for each path is
		Path1.1→4→5→6→7 Time Taken:29 (17+1+6+5)
		Path2.1→4→5→7    Time Taken:24(17+1+6)
		Path3.1→2→5→6→7    Time Taken:32 (14+7+6+5)
		Path4.1→2→5→7    Time Taken:30(14+7+9)
		Path5.1→2→3→7    Time Taken:22 (14+2+6)
		Earliest time for which activity J can be completed is Path5 (Time=22)
		h. 2 paths are possible to complete Activity G as follows
		Path1. 1→4→5             Time Taken:18(17+1)
		Path2.1→2→5               Time Taken:21(14+7)
		i.Slack time for Activity G
		=Late start time -Earliest start time
		=21-18=3