How about Without causing the critical path to become noncritical or otherwise wasting money, by how many days could you reduce the first activity that you would crash? Activity Predecessors Normal duration (days) Crash duration (days) Normal cost Crash cost A -- 5 3 $ 1,000 $ 4,000 B A 8 5 $ 4,000 $ 7,000 C A 7 4 $ 2,000 $ 4,000 D B, C 6 3 $ 1,000 $ 2,000 E B, C 9 5 $ 5,000 $ 8,000 F B, C 10 6 $ 3,000 $ 5,000 G D, E, F 5 4 $ 2,000 $ 5,000