QUESTION $1-30$ marks

a$)$ Draw project network for the following activities. $(11$ marks$)$

b$)$ Calculate the project completion time and Floats and this project. $(11$ marks$)$

c$)$ What are the activities of the critical path $(8$ marks$)$

$\backslash$table$[[$Activity$,$Predecessors,Times$],[$A$,-,6],[$B$,-,3],[$C$,-,8],[$D$,$A$,20],[$E$,$A$,18],[$F$,$B$,9],[$G$,$B$,8],[$H$,$D$,$ E$,7],[$I$,$C$,2],[$J$,$G$,$ I,$14],[$K$,$F$,$ H$,$ G$,10]]$