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Solve Problems 13-12, 13-13, & 13-16 13-12 Sid Davidson is the personnel director of Babson and Willcount, a company that specializes in...

Solve Problems 13-12, 13-13, & 13-16
13-12 Sid Davidson is the personnel director of Babson and
Willcount, a company that specializes in consulting
and research. One of the training programs that Sid is
considering for the middle-level managers of Babson
and Willcount is leadership training. Sid has listed a
number of activities that must be completed before a
training program of this nature could be conducted.
The activities and immediate predecessors appear in
the following table:
ACTIVITY IMMEDIATE PREDECESSORS
A
B
C
D B
E A,D
F C
G E,F
Develop a network for this problem.
13-13 Sid Davidson was able to determine the activity times
for the leadership training program. He would like to
determine the total project completion time and the critical path. The activity times appear in the follow.
follwing table (see Problem 13-12):
ACTIVITY TIME(DAYS)
A            2  
B            5
C            1
D            10
E            3
F            6
G            8
             35
13-16 Monohan Machinery specializes in developing weedharvesting
equipment that is used to clear small lakes
of weeds. George Monohan, president of Monohan
Machinery, is convinced that harvesting weeds is far
better than using chemicals to kill weeds. Chemicals
cause pollution, and the weeds seem to grow faster
after chemicals have been used. George is contemplating
the construction of a machine that would harvest
weeds on narrow rivers and waterways. The activities
that are necessary to build one of these experimental
weed-harvesting machines are listed in the following
table. Construct a network for these activities.
. . .
ACTIVITIES . IMMEDIATE PREDECESSORS .
A
B
C A
D A
E B
F B
G C,E
H D,F

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