Ans: Problem-1:

A/c IPA

A

B A

C A

E B,C,N

F E

G H,K

H B,C,N,M,L

K L

L P

M P

N P

P -

Ans: Problem-2:

Activity Duration (Assumed) IPA

A Da

B Db A SS+0.2Da

A FF+0.6Db

C Dc B SF+0.75Dc

D FS-0.6Dc

D Dd B SS+0.4Db

Start

A

P

B

C

N

M

L

E F

H

G

K

End

(Alternatively)

Ans: Problem 3

Alternatively:

Activity Duration (Assumed) IPA

A Da

B Db A SS+0.5Da

C Dc B SS+0.5Db

A FF+0.25Dc

D Dd B FS

C SF-0.15Dc

A

Da

B

Db

D

Dd

B

Db

SS (0.5Da)

FF (0.25Dc) SF (0.15Dc)

SS (0.5Db)

FS

Ans: Problem-4

Ans: Problem-5

Critical Path A-C-F-L-P

Critical Duration: 36 days

A/c Notation:

A/c

Name

Dur

ES EF

TFL/FFL

LF LS

Start

A

B

C

E

F

G

H

J

K

L

M

N

P

Q

End

R

Time Calculation:

A/c

Name

ES EF LS LF TF FF

A 0 7 0 7 0 0

B 7 10 11 14 4 0

C 9 17 9 17 0 0

D 7 14 15 22 8 0

E 8 18 12 22 4 4

F 14 18 14 18 0 0

G 20 22 26 28 6 0

H 12 17 21 26 9 1

K 14 16 22 24 8 0

L 22 30 22 30 0 0

M 22 29 28 35 6 6

N 18 22 26 30 6 8

P 30 36 30 36 0 0

Ans-Problem-6

0 1 3 8 8 13 13 14 22 16

22 16 18 17

4 8 12 18

11 2

0 1 17 12 12 7

12 18

14 5

8 4

4/0 4/0 4/4

3/3

0/0 0/0

0/0 0/0

Critical Duration: 22 days

Critical Path: A-C-F-H

A/c Notation:

A/c Name

Dur IPA ES EF LS LF TFL FFL

A 1 -- 0 1 0 1 0 0

B 5 A FS+2d 3 8 7 12 4 0

C 4 A SS+4d 4 8 4 8 0 0

D 5 B 8 13 12 17 4 0

E 9 A FF+10d 2 11 5 14 3 3

F 6 C FS +4d 12 18 12 18 0 0

G 1 D 13 14 17 18 4 4

H 6 G FF+4d,F SS+4d,E FS+ 2d

16 22 16 22 0 0

A/c

Name

Dur

ES EF

TFL/FFL

LF LS