Question: Consider the project network given in Figure 7.48. a. Determine the critical path for the network when each activity is realized at its normal time.

Consider the project network given in Figure 7.48.

a. Determine the critical path for the network when each activity is realized at its normal time.

b. Suppose the project must be completed in 15 days. Formulate an LP model that will minimize the cost of meeting the deadline.

c. Solve the model in (b) using an LP software.

d. Generate the time-cost trade-off curve using the network flow approach.

Figure 7.48.

normal time, crash time crash rate 1 (5,4)-30 a 2 (6,3)-40 e

normal time, crash time crash rate 1 (5,4)-30 a 2 (6,3)-40 e (2,1)-10 (2,1)-8 b d (3,2)-5 3 4 C (5,3)-40 (3,1)-55 5 6 7 f g

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