1. What is the minimum cost of crashing the following project that Roger Solano manages at Slippery Rock University by 4 days?
|
ACTIVITY
|
NORMAL TIME (DAYS)
|
CRASH TIME (DAYS)
|
NORMAL COST
|
CRASH COST
|
IMMEDIATE PREDECESSOR(S)
|
|
A
|
6
|
5
|
$ 900
|
$1,000
|
-
|
|
B
|
8
|
6
|
300
|
400
|
-
|
|
C
|
4
|
3
|
500
|
600
|
-
|
|
D
|
5
|
3
|
900
|
1,200
|
A
|
|
E
|
8
|
5
|
1,000
|
1,600
|
C
|
2. Three activities are candidates for crashing on a project network for a large computer installation (all are, of course, critical). Activity details are in the following table:
a) What action would you take to reduce the critical path by 1 day?
b) Assuming no other paths become critical, what action would you take to reduce the critical path one additional day?
c) What is the total cost of the 2-day reduction?