Activity |Activity Crash Normal Crash Cost Predecessor 1 Predecessor 2 Time Time Cost (weeks) (weeks) A 500 1000 B 1000 2000 3 1400 1800 A D 1200 2400 B I C E 2000 2400 D 8 2 2500 3000 E G 7 6000 7200 B H 800 2000 F G Project Period Cumulative time COS cost A B CD E F G H 23 0 0 22 83.33 83.33 21 83.33 166.67 20 83.33 250 N N H 19 83.33 333.33 18 83.33 416.67 17 83.33 500 16 200 700 15 200 900 2 14 200 1100 1 2 6 13 600 1700 1 2 6 1 12 600 2300 1 2 6 2 11 700 3000 1 2 2 6 2 10 900 3900 1 2 1 2 6 1 2 9 900 4800 1 2 2 2 6 2 8 1000 5800 1 2 2 2 2 6 2 2