Week 3 Aib Problem Solutions

726 Words Jun 7th, 2015 3 Pages
AIB Homework Problem Solutions
Problem 1
The following data were obtained from a project to create a new portable electronic.
Activity
A
B
C
D
E
F
G
H
I

Duration
5 Days
6 Days
8 Days
4 Days
3 Days
5 Days
5 Days
9 Days
12 Days

Predecessors
------A, B
C
D
E, F
D
G

Step 1: Construct a network diagram for the project. (NOTE: EF for activity H should be 19)

March 2014

1

AIB Homework Problem Solutions
Step 2: Answer the following questions: (15 points total)
a) What is the Scheduled Completion of the Project? (5 points)
Answer: 32 days
b) What is the Critical Path of the Project? (5 points)
Answer: B-D-F-G-I
c) What is the ES for Activity D? (1 points)
Answer: Day 6
d) What is the LS for
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March 2014

5

AIB Homework Problem Solutions
Step 2: Answer the following questions: (15 points total)
a) Calculate the scheduled completion time. (5 points)
Answer: 19 days
b) Identify the critical path(s) (6 points)
Answer: There are 2 critical paths.
Critical Path 1: A-C-D-F
Critical Path 2: A-C-G-F
c) What is the slack time (float) for activity B? (1 points)
Answer: 3 days
d) What is the slack time (float) for activity D? (1 points)
Answer: 0 days
e) What is the slack time (float) for activity E? (1 points)
Answer: 5 days
f) What is the slack time (float) for activity G? (1 points)
Answer: 0 days

March 2014

6

AIB Homework Problem Solutions
Problem 4
The following data were obtained from an in-house MIS project:
Activity
A
B
C
D
E
F
G
H
I

Duration
5 Days
8 Days
5 Days
4 Days
5 Days
3 Day
7 Days
6 Days
9 Days

Predecessors
----A
B
B
C, D
C, D
E, F, G
E, F

Step 1: Construct a network diagram for the project.

March 2014

7

AIB Homework Problem Solutions
Step 2: Answer the following questions: (15 points total)
a) Calculate the scheduled completion time. (5 points)
Answer: 25 days
b) Identify the critical

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