Development of the new deluxe version of particular software product is being considered. Activities essntial for completion of this are given in the table below.
Activity Normal Time Crash Time Normal Cost Crash Cost Immediate Predecessor
A 4 3 2,000 2,600 -
B 5 3 2,200 2,800 -
C 3 3 500 500 -
D 8 4 2,400 2,600 A
E 6 3 900 1,200 B
F 3 2 3,000 4,200 C
G 4 2 1,700 2,000 D,E
(a) If you want to decrease the time needed to complete this project by two weeks, which activityies must be crashed, and how much will this increase total cost?
(b) What would be extra cost if you wished to complete project in minimum time possible?