This is Anita's work center. 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 Cici before work center Caca. Use Johnson's rule to sequence these five jobs for minimum total duration. Show your work in determining the job sequence and after how many hours will all jobs be completed?

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Job	Cici	Caca
R	20	10
S	25	35
T	50	20
U	26	26
V	55	75