2. Consider the following planning and scheduling problem with variable costs 6 Jobs Pred 3 1 none 5 3 9 2 2 11 10 2 8 7 3 4 2 7 6 3 5 3 6 4 2 mm 3 3 a) Construct the network of the process using max p values. Find the Critical path and Cmax. Due to a small network the CPM is not needed to calculate the critical path just evaluate the two possible paths. (5 points) b) Calculate total cost of the process. Assume CO=57. (5 points) c) Using the trade cost method. (7.5 points) a. Draw the sub network of the critical path in previous step b. Construct a table with all minimal cut-sets and costs per min cut set c Select the min cut set with the min cost and reduce pis one unit of time