Final answer:
The priority rule where jobs are processed according to the smallest ratio of time until due date to processing time is the critical ratio (CR). Option A is correct.
Step-by-step explanation:
The priority rule where jobs are processed according to the smallest ratio of time until due date to processing time is the critical ratio (CR). This rule is commonly used in operations scheduling to prioritize jobs based on their urgency and processing time.
To calculate the critical ratio, you divide the time remaining until the due date by the processing time for each job. The job with the smallest ratio has the highest priority and should be processed first.
For example, if Job A has 5 days until its due date and requires 10 hours to complete, its critical ratio would be 5/10 = 0.5. If Job B has 3 days until its due date and requires 12 hours to complete, its critical ratio would be 3/12 = 0.25. In this case, Job B would have a higher priority than Job A.
The priority rule where jobs are processed according to the smallest ratio of time until due date to processing time is known as the critical ratio (CR). This method is often used in operations management and scheduling to determine the order in which to process jobs or tasks.
The critical ratio is calculated by dividing the time remaining until a job's due date by the job's processing time. A lower critical ratio means that the job has a higher priority and should be processed sooner.