Consider a project having the following six activities:

Immediate Max Crash cost

Activity Predecessors Time $($weeks$)$ Crash$*$ per week

A C$,$ E $42$ $$2000$

B A $52$ $$1000$

C G $66$ N$/$A

D C $32$ $$1000$

E G $52$ $$500$

F A$,$ D $62$ $$1250$

G none $52$ $$2250$