A New Surgical Facility Called Cut & Sew Is Opening

question 43

Multiple Choice

A new surgical facility called Cut & Sew is opening in neighborhoods throughout the United States. They are job shops that handle a variety of outpatient surgical procedures. Their process is set up so that one doctor cuts and another sews. They have five patients to sequence for tomorrow. Since the weather forecast is for a warm and sunny day, they would also like to play golf tomorrow. They want to sequence their patients with the objective of minimizing the time from the beginning of the first job until the finish of the last job. The patients and estimated times are as follows:
$\begin{array}{|c|c|c|}\hline \text { Patient } & \text { Cut Time (hours) } & \text { Sew Time (hours) } \\\hline \text { A } & 2.3 & 2.8 \\\hline \text { B } & 2.5 & 3.0 \\\hline \text { C } & 2.0 & 1.5 \\\hline \text { D } & 0.6 & 1.0 \\\hline \text { E } & 3.6 & 2.6 \\\hline\end{array}$
-Using Johnson's rule to sequence these patients, the makespan is _____.

• A) less than or equal to 5 hours
• B) more than 5 but less than or equal to 10 hours
• C) more than 10 but less than or equal to 15 hours
• D) more than 15 but less than or equal to 20 hours

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