O$1.$

Determine the duration of project for the activities shown below, and find the critical path by using Gantt chart

$\backslash$table$[[$Activity$,$A$,$B$,$C$,$D$,$E$,$F$,$O$,$H$,$I,J$,$K$,$M$,$N$,$R$],[\backslash$table$[[$Duration$],[($Weeks$)]],3,3,4,5,2,6,5,8,3,5,1,6,8,2],[$Predecessor$,-,$A$,$A$,$A$,$B$,$D$,-,-,$C$,$H$,$D$,$I,O$,$M$,$I$]]$

Q$2.$

Create the $($AON$)$ diagram of the below table which indicate the activities and their precedence activity as well as their duration, also find out the critical path

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