What is PERT?

For the following data, draw network. Find the critical path, slack time after calculating the earliest expected

time and the latest allowable

time

Activity

Duration

Activity

Duration

(1

-

2)

(1

-

3)

(2

-

4)

(2

-

5)

(2

-

6)

(3

-

7)

(3

-

8)

(4

-

9)

5

8

6

4

4

5

3

1

(5

-

9)

(6

-

10)

(7

-

10)

(8

-

11)

(9

-

12)

(10

-

12)

(11

-

13)

(12

-

13)

3

5

4

9

2

4

1

7

[Ans. Critical path: 1 3 7 10 12 13