Joe’s commercial laundry has contracts to wash bedsheets for hotels. Joe intakes each batch of sheets, which takes 1 minute, and then the sheets are washed, taking 20 minutes,and dried, taking 30 minutes. The batch of sheets is ironed, taking 10 minutes for one employee to complete each batch, and there are two employees ironing sheets. Finally, Joe packages the sheets and bills the customer, taking 2 minutes. Joe has five washing machines and seven dryers that can process one batch of sheets each. a. What is the capacity of the laundry system, and what is the bottleneck? b. What is the average throughput time of a batch of sheets? c. If the flow rate is 10 batches per hour, what is the average number of batches of sheets in the system (inventory)?

Joe’s commercial laundry has contracts to wash bedsheets for hotels. Joe intakes each batch of sheets, which takes 1 minute, and then the sheets are washed, taking 20 minutes,and dried, taking 30 minutes. The batch of sheets is ironed, taking 10 minutes for one employee to complete each batch, and there are two employees ironing sheets. Finally, Joe packages the sheets and bills the customer, taking 2 minutes. Joe has five washing machines and seven dryers that can process one batch of sheets each. a. What is the capacity of the laundry system, and what is the bottleneck? b. What is the average throughput time of a batch of sheets? c. If the flow rate is 10 batches per hour, what is the average number of batches of sheets in the system (inventory)?

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter4: Linear Programming Models

Section: Chapter Questions

Problem 111P

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