QUESTION 1 Atkinson department is installing new computer sy

QUESTION 1: Atkinson department is installing new computer system. They have to perform several activities. Following table provides information about the project: Crash Normal Normal Crash Activity Time (days) Cost (S) Time (days) Cost A 13 18790 9 30070 C 13 36800 113 36800 24770 11 1960 10 24 120 15240 3 17650 18940 7 19930 23000 33050 K 11 58200 11 58200 L 3 24500 2 25800 M 8 18900 7 20530 O 4 12500 3 14090 P 16 25600 11 29200 Q 13 33720 9 37800 S 5 24710 3 27 110 T 9 38520 8 39845 9540 15000 26 16680

Solution

(a)

Path       Length     

A-E-I-Q    13+11+9+13=56
A-F-I-Q              13+9+9+13=44
A-F-I-M-R-U       13+9+9+8+3+3=45
B-G-J-N-S-R-U   12+4+10+11+3+3=43
B-G-J-N-V          12+4+10+11+8=45
C-H-K-O-T         13+8+11+4+9=45
C-H-K-O-S-U      13+8+11+4+5+3=44
C-J-N-V             13+10+11+8=42
C-W                  13+29=42
D-H-K-O-S-U     15+8+11+4+5+3=43
D-H-K-O-T         15+8+11+4+9=47

Critical Path is A-E-I-Q  

(b) Poject completion time = 56 days