ollowing is a table listing the project activities, sequencing requirements and

other relevant information:

Expected Time Direct Cost

Activity Preceded Regular Crash Regular Crash

By

A $--6$ days $2$ day $$2000$ $$3800$

B $--126200010000$

C A $4210004000$

D B$,$ C $10634004600$

E D $8628003900$

F E $6250007600$

G B$,$ C $1881600019600$

H F$,$ G $6420004000$

Requested:

$($a$)$ Construct a network including the Early and Late Start and Finish times.

$($b$)$ Identify the normal Critical Path$($s$)$ and the normal expected completion

time

$($c$)$ Can the project be crashed to last $18$ days? Which activities should

be crashed and at what additional cost?