Problem 1: 8 marks
Probem 2: 12 marks
The following data on crash time and crash cost concern the following project.
Activity Preceding Activity(ies) Time (days) Cost (Dhs''000)
Normal Crash Normal Crash
A None 6 4 48 66
B A 3 2 30 42
C A 5 4 40 50
D B 14 11 70 91
E C, D 12 9 72 90
F D 10 8 80 104
G D 7 6 56 68
H B 14 10 84 120
I F, G,H 4 3 48 64
J I, E, G 12 10 84 110
a) What are the critical path and the duration of the project?
b) Determine the total cost of the project if the duration is crashed by 3 days.
c) What is the minimum time to complete the project and its total cost?