For a project with the following details, compute the completion time and identify the critical/non-critical activities with their slack values.

Activity

Immediate Predecessors

Duration (days)

A

-

1

B

A

4

C

A

2

D

A

2

E

D

3

F

D

3

G

E

2

H

F,G

1

I

C,H

3

J

B

2