Question

3 & 15. For the following schedule, draw the node network, perform the CPM calculations, mark the critical path, and complete the table. Repeat exercise 3 with an imposed finish date of 15 and then 20 days.

Activity	Duration	IPA	ES	EF	LS	LF	TF	FF
A	2	-
B	4	A
C	6	A
D	9	A
E	5	B
F	7	B, C
G	3	D, E, F

Answer 1

Network Diagram in hand written format using forward and backward path calculation, Step by step answer is written below,

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Activity	Duration	IPA	ES	EF	LS	LF	TF	FF
A	2	-	0	2	0	2	0	NA
B	4	A	2	6	4	8	2	0(A)
C	6	A	2	8	2	8	0	0(A)
D	9	A	2	11	6	15	4	0(A)
E	5	B	6	11	10	15	4	0(B)
F	7	B, C	8	15	8	15	0	2(B), 0 ( C )
G	3	D, E, F	15	18	15	18	0	4(D), 0(F), 4 (E)