$\backslash$table$[[$Activity$,$Predecessor,$\backslash$table$[[$Duration$],[($Months$)]],\backslash$table$[[$Cost per$],[$Activity $($Rands$)]]],[$A$,-,1,$R$20000],[$B$,-,2,R80000$

Draw the precedence diagram

a$.$Determine the critical path

b$.$ The duration of the project, overhead cost, the sum of the activity cost and the total cost of the project

c$.$ calculate the Total float and Free float for each of the activities in the precedence diagram