Activity Preceding Activity Optimistic Duration $($Days$)$ Most Likely Duration $($Days$)$ Pessimistic Duration $($Days$)$ Crash Cost $/$ Day $($$$)$ Max Crash Days

$1-162125-0$

$2-252836-0$

$311621251,2203$

$421013151,2252$

$5249138901$

$63,4,52837493,2306$

$761319242,9752$

$87710141,3501$

$971420251,2003$

$108,981013-0$

a$.$ Utilizing MS Word tools, create a network diagram depicting this project.

b$.$ List the critical path$($s$).$ OD MLD PD

Set $1$: $1->3->6->7->8->1088.118150$

Set $2$: $2->4->6->7->8->1091117151$

Set $3$: $2->5->6->7->9->1092123160$

c$.$ What is the expected duration of the project?

$35,37,39$

d$.$ The project duration must be reduced by $5$ days. Which activities, in chronological order, will be crashed?

You could crash $9,9,9,7,7$ since