a. use johnson's rule to sequence these five jobs for minimum total duration. show your work in determining the job sequence

3) The president of a consulting firm wants to minimize the total number of hours it will take to complete four projects for a new client. Accordingly, she has estimated the time it should take for each of her top consultants -- Charlie, Gerald, Johnny, and Rick -- to complete any of the four projects, as follows: 13 Consultant Charlie Gerald Johnny Rick Project Hours A B 16 11 13 15 10 15 11 20 17 17 12 D 18 12 15 22 3) The president of a consulting firm wants to minimize the total number of hours it will take to complete four projects for a new client. Accordingly, she has estimated the time it should take for each of her top consultants -- Charlie, Gerald, Johnny, and Rick -- to complete any of the four projects, as follows: 13 Consultant Charlie Gerald Johnny Rick Project Hours A B 16 11 13 15 10 15 11 20 17 17 12 D 18 12 15 22