$1.$ Perform logical compression to calculate the normal, least$-$cost$,$ and crash durations for the

following project. Also, calculate the cost associated with each duration. Indirect costs are

$$100$ per day. Use the end of day convention.

Activity Predecessors

Duration $($Days Cost $($$$)$

Normal Crash Normal Crash

A $-75500640$

B A $65550630$

C A $85800935$

D B $1071,2001,440$

E B$,$ C $64600700$

F C $43500590$

G D$,$ F $427001,000$

H E$,$ F $74650950$

I G$,$ H $22300300$