B D E F H II Immediate 60 Activity Processors Normal Crash Normal Crash 61 A None 7 6 $7,000 $8,000 62 B A 5 3 $5,000 $6,000 63 A 4 3 $9,000 $10,200 64 D 3 2 $3,000 $4,500 65 E B,D 6 4 $2,000 $6,400 66 F 8 6 $4,000 $6,800 67 G E,F 6 5 $5,000 $8,000 68 69 70 The critical path and the project completion time (in normal time) are respectively 71 72 73 74 75 + 76 77 wa 78 79 80 81 If the project needs to be shortened by four days, show activities to be crashed in the order of reduction. 82 83 84 85 If the project needs to be shortened by four days, what is the total cost (normal cost plus crash cost)? 86 87 88 89