Five jobs are waiting for processing through two work centres. ...

[student77]

Question 1

Five jobs are waiting for processing through two work centres. Their processing time (in minutes) at each work centre is contained in the table below. Each job requires work centre Alpha before work centre Beta. According to Johnson's rule, which job should be scheduled first in the sequence?

Job	Alpha	Beta
R	20	10
S	25	35
T	50	20
U	15	35
V	55	75

◦ R
◦ T
◦ V
◦ S
◦ U

Question 2

Five jobs are waiting for processing through two work centres. Their processing time (in minutes) at each work centre is contained in the table below. Each job requires work centre Sigma before work centre Delta. According to Johnson's rule, what sequence of jobs will minimize the completion time for all jobs?

Job	Sigma	Delta
R	40	10
S	25	30
T	50	20
U	35	35
V	55	15

◦ V-R-U-S-T
◦ R-S-T-U-V
◦ S-U-T-V-R
◦ S-V-T-R-U
◦ none of the above

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[student77]

Thanks for the timely response, appreciate it

[kishoreddi]

YES! Correct, THANKS for helping me on my review