A Activity A B C D B E F G Immediate Precessors None A A B,C D D E,F C Normal 7 6 4 5 4 35 Crash 6 4 3 3 62 63 64 65 56 67 68 69 70 71 Assuming that indirect cost is $1,000/day. 72 73 1. The critical path and the project completion time (in normal time) are respectively 74 5 E 3 1 4 Normal Crash $7,000 $5,000 $2,000 $4,000 $3,000 $6,000 $7,000 $8,000 $6,600 $2,600 $6,400 $5,000 $7,600 $10,000 75 76 77 78 79 80 81 82 83 2. If the project needs to be shortened by four days, show activities to be crashed in the order of reduction. 84 85 86 87 3. If the project needs to be shortened by four days, what is the total cost (direct cost plus indirect cost)? 88 89 90 91 92 93 94 95 96 97 3 64 55 Problem 2 56 The project manager of a task force planning the repair of the domed stadium hopes to be able to complete 57 the construction prior to the start of the next college football season. After reviewing construction time 58 estimates, it now appears that a certain amount of crashing will be needed to ensure the project completion 59 before the season opener. The following time and cost estimates are given. 60 61 Time (in days) 62 63 64 65 66 67 75 76 77 Activity A 78 79 B C D 80 E F G Immediate Precessors None A A B,C D D E,F Normal 7 6 4 5 4 3 Crash 6 4 3 3 5 3 1 4 68 69 70 71 Assuming that indirect cost is $1,000/day. 72 73 1. The critical path and the project completion time (in normal time) are respectively 74 Direct Cost Normal $7,000 $5,000 $2,000 $4,000 $3,000 $6,000 $7,000 Crash $8,000 $6,600 $2,600 $6,400 $5,000 $7,600 $10,000