c$)$ Can activity $H$ be delayed without delaying the project completion time? If so$,$ how many days? If $$800$ can be saved for each delayed day of activity $F,$ then how much dollar can be saved keeping the project completion time unchanged?

d$)$ Activity J needs a delayed time of one day or an extra time of one day. Is it possible by keeping the project completion time unchanged? Explain.

e$)$ Activity A needs a delayed time of five days and activity $D$ needs extra time of four days. Is it possible by keeping the project completion time unchanged? Explain.

f$)$ The PM wants to shorten the duration of the activity I from $6$ days to $4$ days. What is the impact of this change on project completion time and critical path?

g$)$ Activity $J$ needs $1$ day delay time and activity $E$ needs $1-$day extra time. Is it possible by keeping the project completion time unchanged? Explain.

$5$

Question $03$:

$20$ marks

Activities of a project are summarized in the following table.

$\backslash$table$[[$Activity$,\backslash$table$[[$Immediate$],[$Predecessor$($s$)]],\backslash$table$[[$Duration$],[($Days$)]],$Activity,$\backslash$table$[[$Immediate$],[$Predecessor$($s$)]],\backslash$table$[[$Duration$],[($Days$)]]],[$A$,--,10,F,B,C,8],[$B$,-,12,$G$,B,C,4],[C,-,4,H,C,2],[$D$,$A$,2,1,G,H,6],[E,B,C,7,J,D,E,2]]$