Following table shows the activities, their interdependence and the duration

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written 5.7 years ago by

teamques10 ★ 68k

• modified 4.6 years ago

Activity	A	B	C	D	E	F	G	H	K	L	M
Preceding activity	-	-	-	A	B	B	C	C	F	G	H,K,L
Duration (days)	3	3	3	18	4	15	8	11	7	5	7

a) Draw a A-O-A network
b) Work out all activity times and floats
c) Identify the critical path and the project duration.

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written 5.6 years ago by

teamques10 ★ 68k

• modified 5.6 years ago

Ans:

Starting Activity : A, B, C

Ending Activity : D, E, M

enter image description here

Critical Path:

1) 1-3-8-B+E=3+4 = 7 Days

2) 1-3-5-7-8-B+F+K+M=3+15+7+7 =32 Days

$\therefore$ Critical Path is 1-3-5-7-8

and Critical ctivity are B.f. K-m

Activity	Predecessor	Duration	EST	EFT	LST	LFT	TF	FF	Ind F(T.F-F.F)	I.F
A	-	3	0	3	11	14	11	00	11	00
B	-	3	0	3	0	3	0	00	0	0
C	-	3	0	3	9	12	9	00	0	0
D	A	18	3	21	14	32	11	011	0	0
E	B	4	3	7	28	32	25	025	0	25
F	B	15	3	18	3	18	0	00	0	0
G	C	8	3	11	12	20	9	00	9	-9
H	C	11	3	14	14	25	11	011	0	2
K	F	7	18	25	18	25	0	00	0	0
L	G	5	11	16	20	25	9	09	0	0
M	H,K,L	7	25	32	25	32	0	00	0	0

1) $EFT = EST + duration$

2) $LST = LFT - duration$

3) $T.F = LFT - EFT \ or \ LST - EST$

4) $F.F$ = enter image description here

= $3-0-3=0$

5) $Ind.\ F = T.F- F.F$

6)$ I.F = From \ dia : 3-0-3 = 0$

enter image description here

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