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Q2 (Total 40 polnts) The project manager bad hoped to be able to complete the construction of a building prior to the start of the next season. After reviewing the activity duration estimates, it now appears that a certain amount of crashing will be needed to ensure the project completion before the start of the season. We assume that the maximal number of weeks for crashing is two weeks for each activity. Each activity in the first column precedes the activity/activities in the corresponding second column. Given the following information, determine the minimum-cost crashing schedule that will save five weeks off the project length (Hint: you need to draw the precedence network first), Activity Precedes 8 b C d c f b k def S h 1 Duration (weeks) 11 14 10 17 18 12 15 8 7 12 9 3 11 8 Crashing Cost Crashing Cost First Week Second Week $15,000 $25,000 10.000 10.000 3,000 5,000 20,000 24,000 16,000 17,000 12,000 16,000 24,000 24,000 an m - 18 h i li k DP J END END BND END 30,000 25,000 10.000 25,000 10.000 1 40,000 20,000 p 20,000