Question: Act Predecessor Optimistic Most likely Pessimistic a - 3 6 8 b - 2 4 4 c - 1 2 3 d a,b 6 7

Act

Predecessor

Optimistic

Most likely

Pessimistic

a

-

3

6

8

b

-

2

4

4

c

-

1

2

3

d

a,b

6

7

8

e

c

2

4

6

f

e

6

10

14

g

e

1

2

4

h

d

3

6

9

i

g,h

10

11

12

j

f,g

14

16

20

4.1 Using PERT, calculate the time (t) for each activity. (10)

4.2 Draw the network diagram (AON) based on the above and identify the critical path. (15)

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