Assume that all of the jobs below arrived at the same time. Also assume that transfer times are zero and jobs cannot be split

-Using a Gantt chart and the processing order as per the critical ratio (CR) rule, determine the average tardiness.
A)0.8 hrs
B)6.6 hs
C)11.6 hrs
D)15 hrs
E)18 hrs

Question

Assume that all of the jobs below arrived at the same time. Also assume that transfer times are zero and jobs cannot be split
 
-Using a Gantt chart and the processing order as per the critical ratio (CR) rule, determine the average tardiness.
A)0.8 hrs 
B)6.6 hs 
C)11.6 hrs 
D)15 hrs 
E)18 hrs

Quizplus · Accepted Answer

The average tardiness is 0.8 hours. The critical ratio rule is used to determine the processing order of jobs. The critical ratio is calculated by dividing the remaining processing time by the due date. The job with the highest critical ratio is processed first. The average tardiness is calculated by adding the tardiness of each job and dividing by the number of jobs.

Assume That All of the Jobs Below Arrived at the Same