determine the critical path by activities and

Question

Determine the critical path by activities and duration.

Activity          Duration (Wks)       Preceded by

A                     5                               -

B                     4                               -

C                     2                               A, B

D                     2                               C

E                     7                                D

F                     3                                E

G                    1                                F

H                    2                                G

I                     4                                G

J                     1                                H, I

Determine the critical path above specified activities and find out what the elapsed time of the project would be? Determine no. weeks that activity H over run by without affecting the elapsed time of the project?