Chapter 7, Problem 18P

A

Summary Introduction

To calculate: Identification of critical path using the following information and expected time to complete the project.

Activity	Activity time (days)	Activity cost($)	Immediate predecessor
A	$3$	$100$	-
B	$4$	$150$	-
C	$2$	$125$	A
D	$5$	$175$	B
E	$3$	$150$	B
F	$4$	$200$	C , D
G	$6$	$75$	C
H	$2$	$50$	C , D ,E
I	$1$	$100$	E
J	$4$	$75$	D,E
K	$3$	$150$	F,G
L	$3$	$150$	G ,H ,I
M	$2$	$100$	I ,J
N	$4$	$175$	K ,M
O	$1$	$200$	H,M
P	$5$	$150$	N,L,O

Introduction: Critical path refers to set of network activities sequence in the project needed to operate the project in least possible time.

B

Summary Introduction

To calculate: Finding the total cost of the project up to the estimated date to complete the project as if the activities of earliest start times and comparing with the latest start times and noting the impact of time differential on cash flows and project scheduling

Introduction: earliest start times refers to earliest time the activity of a scheduled project may begin equalizing earliest times of completing all its predecessor activities and latest start times used in PERT analysis describing a portion of the project must be started so that project finish time cannot be delayed