8 The LINDO output in Figure 41 can be used to determine the critical path for Problem 5. Use this output to do the following:

a Draw the project diagram.
b Determine the length of the critical path and the critical activities for this project.

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TABLE 24 Activity Cost per Day of Reducing Duration of Activity ($) ABCDEFG 100 80 60 70 30 20 50 Maximum Possible Reduction in Duration of Activity (Days) FIGURE 41 LINDO Output for Problem 8 3 452444 MIN X6 - X1 SUBJECT TO 2) X1 X2 >= 5 3) X2 X3 >= 8 4) X3 X4 >= 4 5) X3 X5 >= 10 6) X4 X5 >= 6 7) X6 X3 >= 5 8) X6 X5 >= 3 END 1) LP OPTIMUM FOUND AT STEP VARIABLE OBJECTIVE FUNCTION VALUE 26.0000000 VALUE 26.000000 0.000000 6 REDUCED COST X6 0.000000 X1 0.000000 X2 5.000000 0.000000 X3 13.000000 0.000000 X4 17.000000 0.000000 X5 23.000000 0.000000