Time Cost CPM scheduling analysis table

Question 16: Time-Cost CPM Scheduling Model Analysis
 
Below are the data for a Time-Cost CPM Scheduling model analysis. The time is in days.
 

Activity Immediate Predecessor Normal Time Crash Time Normal Cost Crash Cost
A None 4 3 $213 $397
B A 4 3 $307 $623
C A 1 1 $212 $212
D B and C 5 4 $503 $551
E D 4 3 $494 $897

 
Part b: 4 points
 
What are the total normal cost of this project? Please give your answer in $.
Locally stored answer:

 
Part c: 6 points
 
If you crash this project to reduce the total time by one day (keeping the cost as low as possible), what is the total cost of the project? Please give your answer in $.
Locally stored answer:

 
Part d: 6 points
 
If you crash this project to reduce the total time by three days (keeping the cost as low as possible), what is the total cost of the project? Please give your answer in $.
Locally stored answer: