Assignment $-$ Arrow Diagram Technique

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

A$)$ Project total duration

B$)$ Forward and Backward Passes

C$)$ Calculations $-$ Tabulate your answer

D$)$ Critical Path

Project $1(20$ points$)$:

$\backslash$table$[[$Activity$,$Duration,Predecessor$],[$A$,1,-],[$B$,2,-],[$C$,3,-],[$D$,4,$A$],[$E$,5,$B$],[$F$,6,$B$],[$G$,6,$C$],[$H$,6,$D$,$ E$],[$I$,2,$G$],[$J$,3,$H$,$ F$,$ I$]]$

Project $2(20$ points$)$:

$\backslash$table$[[$Activity$,$Duration,Predecessor$],[$A$,2,-],[$B$,4,-],[$C$,3,-],[$D$,5,$A$],[$E$,8,$A$,$ B$],[$F$,6,$A$,$ B$,$ C$]]$