Five jobs are waiting for processing through two work centers. Their processing time (in minutes) at each work center is contained in the table below. Each job requires work center Alpha before work center Beta. According to Johnson's rule, which job should be scheduled first in the sequence?
A) R
B) S
C) T
D) U
E) V

Question

Five jobs are waiting for processing through two work centers. Their processing time (in minutes) at each work center is contained in the table below. Each job requires work center Alpha before work center Beta. According to Johnson's rule, which job should be scheduled first in the sequence? 
A) R 
B) S 
C) T 
D) U 
E) V

Quizplus · Accepted Answer

Johnson's rule involves finding the shortest processing time for each job by looking at the time required at both work centers and scheduling jobs in order of increasing time. For job D, the shortest processing time is 16 minutes (10 minutes at Alpha and 6 minutes at Beta), which is the smallest value among all jobs. Therefore, job D should be scheduled first in the sequence according to Johnson's rule.

Five Jobs Are Waiting for Processing Through Two Work Centers