Problem 1

The following data were obtained from an in-house MIS project:

Activity Duration Predecessors

A        3 Days   —

B        6 Days   —

C        3 Days   B

D        2 Days   A

E        3 Days   C,D

F        2 Days   A

G        4 Days   F

H        7 Days   B

I        2 Days   C,D

J        4 Days   H,I

K        8 Days   H,I

L        5 Days   E,G,J

a) What are the critical path activities? (5 points)

b) What is the project’s scheduled completion time? (5 points)

c) What is the slack or float for Activity C? Show your calculations. (1 point)

d) What is the slack or float for Activity F? Show your calculations. (1 point)

e) What is the slack or float for Activity E? Show your calculations. (1 point)

f) What is the slack or float for Activity J? Show your calculations. (1 point)

Problem 2.

A project to remodel an office area has the following activities.

Activity

Duration

Predecessors

A

3 months

B

2 months

C

3 months

D

4 months

A, B

E

3 months

A

F

2 months

B, C

G

2 months

F

H

1 month

G

I

4 months

D, E, F

J

5 months

H

a) What are the critical path activities? (5 points)

b) What is the project’s scheduled completion time? (5 points)

c) What is the slack or float for Activity B? Show your calculations. (1 point)

d) What is the slack or float for Activity D? Show your calculations. (1 point)

e) What is the slack or float for Activity F? Show your calculations. (1 point)

f) What is the slack or float for Activity I? Show your calculations. (1 point)

Problem 3

Information from a room addition project:

Duration

Predecessors

A

2 wks

B

3 wks

C

5 wks

D

7 wks

A

E

3 wks

B

F

2 wks

C

G

4 wks

F

H

1 wk

A

I

8 wks

D, E, G

J

5 wks

F

K

2 wks

D, E, G, H

a) What are the critical path activities? (5 points)

b) What is the project’s scheduled completion time? (5 points)

c) What is the slack or float for Activity A? Show your calculations. (1 point)

d) What is the slack or float for Activity F? Show your calculations. (1 point)

e) What is the slack or float for Activity H? Show your calculations. (1 point)

f) What is the slack or float for Activity K? Show your calculations. (1 point)

Problem 4

InformAtion from a site renovation project:

A          2 wks               _

B          5 WKS             A

C          3 WKS             B

D          15 WKS           B

E          8 WKS             C

F          10 WKS           C

G         2 WKS             D

H          6 WKS             E, F, G

I           5 WKS             H

a) What are the critical path activities? (5 points)

b) What is the project’s scheduled completion time? (5 points)

c) What is the slack or float for Activity C? Show your calculations. (1 point)

d) What is the slack or float for Activity F? Show your calculations. (1 point)

e) What is the slack or float for Activity I? Show your calculations. (1 point)

f) What is the slack or float for Activity K? Show your calculations. (1 point)