QUESTION $25$

$4$ points

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The following set of jobs must be processed serially through a two$-$step system. The times at each process are in hours. If Johnson's Rule is used to sequence the jobs then the makespan time $($in hours$)$ for all jobs is

$\backslash$table$[[$Job$,$Process $1,$Process $2],[$A$,12,9],[B,8,11],[$C$,7,6],[$D$,10,14],[$E$,5,8]]$

A$.95$ hours.

B$.53$ hours.

C$.90$ hours.

D$.42$ hours.