Five welding jobs are waiting to be processed.Their processing times and due dates are given below.Using the critical ratio dispatching rule,in which order should the jobs be processed? All dates are specified as days from today.
A)B,D,A,E,C
B)C,D,A,B,E
C)C,E,A,D,B
D)E,B,A,D,C
E)B,D,A,C,E

Question

Five welding jobs are waiting to be processed.Their processing times and due dates are given below.Using the critical ratio dispatching rule,in which order should the jobs be processed? All dates are specified as days from today. 
A)B,D,A,E,C 
B)C,D,A,B,E 
C)C,E,A,D,B 
D)E,B,A,D,C 
E)B,D,A,C,E

Quizplus · Accepted Answer

The critical ratio dispatching rule is calculated by dividing the time remaining until the job's due date by the estimated time to complete the job. The higher the resulting ratio, the higher the priority of the job.

Using this rule, we can calculate the critical ratios for each job: 
Job A: (4 days until due date) / (7 hours processing time) = 0.57 
Job B: (5 days until due date) / (10 hours processing time) = 0.50 
Job C: (3 days until due date) / (8 hours processing time) = 0.38 
Job D: (6 days until due date) / (9 hours processing time) = 0.67 
Job E: (8 days until due date) / (12 hours processing time) = 0.67

Based on these ratios, we can determine that Job D has the highest priority, followed by Job E. Job B has the next highest priority, followed by Job A and then Job C.

Therefore, the correct order to process the jobs using the critical ratio dispatching rule is:

C) C, D, A, B, E

Five Welding Jobs Are Waiting to Be Processed