(20 points) Calculate ES, EF, LS, and LF for all activities in the following graph. ss = 2 ss = 5 4 FS FF = 6 FS 6 IFS = 1 FS ss = 3 2F
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Expert Answer
G
ES = 0 (Since G doesn’t have any predecessor, ES is 0)
EF = 6( ES + task time ie, 0+6 = 6)
LS = 0(LF-task time ie, 6-6=0)
LF = 2(If it has successor and it has more than one successor, LF is equivalent to earliest LS of its successors)
M
ES = 6 (Predecessor EF value)
EF = 10( ES + task time ie,6+4 =
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