You are project manager for a project with activities, predecessors, normal durations,

normal costs, crash durations and crash costs as shown below.

a$)$ What is the project's Earliest Finish $($EF$)$ time and total cost as originally

scheduled $($assuming normal durations and normal costs$)?$

b$)$ Can the project duration be reduced to $19$ weeks? If so$,$ what activity$($ies$)$ would

you recommend crashing to get it to that duration? What is the minimum total

project cost to finish within this duration?

c$)$ Can the project duration be reduced to $17$ weeks? If so$,$ what activity$($ies$)$ would

you recommend crashing to get it to that duration? What is the minimum total

project cost to finish within this duration?

d$)$ Can the project duration be reduced to $15$ weeks? If so$,$ what activity$($ies$)$ would

you recommend crashing to get it to that duration? What is the minimum total

project cost to finish within this duration?

e$)$ What is the minimum duration the project can possibly be completed in$?$ What is

the minimum total cost to complete the project within this amount of time?