Problem involving PERT and CPA
You are planning to make dinner, and would like to have it served and ready to eat at 6:30 P.M. Below is a list of task that need to be completed to get the dinner ready. Some of these tasks can be done together but some require completion of other tasks before you can start with them.
TASK Time in minute Prerequisite task
A. Wash hands 1 none
B. Defrost hamburger X none
C. Shape meat into patties 4 A. B
D Cook 1 lambuiij^ivs II C
I Peel potatoes 10 A
F. Fry potatoes 11 E
G. Make salad 12 A
11 Set table 3 A
1. Serve food •) D. F.G.H
A. Based on this information, what is the latest time you can start the dinner arrangements to have it ready for your date who is arriving at 6:30 PM.
B. Making a salad takes the longest amount of time. Would shortening this time by 5 minutes mean that you could start dinner 5 minutes later? Explain
Your reasoning should he mathematical not speculative.