There Are Five Jobs in a Factory Using Johnson's Sequencing Rule, It Can Be Concluded That the Have

question 5

Multiple Choice

There are five jobs in a factory. All these jobs have to go through two workstations for processing. Each job is processed on Workstation #1 and then on Workstation #2. The processing time for each job on each workstation is given below.
$\begin{array} { | l | l | l | } \hline \text { Job } & \text { Time on Workstation {\#}1(minutes) } & \text {Time on Workstation {\#}2 (minutes) } \\\hline \text { A } & 50 & 50 \\\hline \text { B } & 20 & 8 \\\hline \text { C } & 25 & 50 \\\hline \text { D } & 30 & 12 \\\hline \text { E } & 11 & 22 \\\hline \text { F } & 11 & 19 \\\hline\end{array}$
Using Johnson's sequencing rule, it can be concluded that the makespan of the sequence is:

• A) more than 50 but less than or equal to 100 minutes.
• B) more than 100 but less than or equal to 150 minutes.
• C) more than 150 but less than or equal to 200 minutes.
• D) more than 200 but less than or equal to 250 minutes.

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