Assignment $-$ Arrow Diagram Technique

Draw neatly by hand the arrow diagram for the following projects and determine:

Project total duration

Forward and Backward Passes Calculations $-$ Tabulate your answer

Critical Path

Project $3(20$ points$)$:

$\backslash$table$[[$Activity$,$Duration,Predecessor$],[$A$,2,-],[$B$,3,$A$],[$C$,1,$A$],[$D$,4,$B$],[$E$,3,$C$],[$F$,2,$C$],[$G$,5,$D$,$ E$,$ F$],[$H$,1,$G$]]$

Project $4(20$ points$)$:

$\backslash$table$[[$Activity$,$Duration,Predecessor$],[$A$,5,-],[$B$,7,-],[$C$,3,$A$],[$D$,6,$A$],[$E$,8,$B$],[$F$,5,$D$],[$G$,6,$B$,$ C$]]$