Average number of customer per hour processed in check out time. Concept introduction: any flow unit, when flows through process, follows little’s law which state that the work in progress in the process of product of flow time/cycle and the through put/ flow rate.

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a) Huurhun Printing in Ulaanbaatar has four typesetters and four jobs to be completed as given in the table. The $ entries represent the firm’s estimate of what it will cost for each job to be completed by each typesetter. Find the optimal assignment of jobs to typesetters so as to minimize the total costs. Typesetters Jobs A B C D 42HG $7 $3 $4 $8 19DT $5 $4 $6 $5 47ST $6 $7 $9 $6 17VT $8 $6 $7 $4 b) Huurhun Printing in Ulaanbaatar has the following printing jobs waiting to be processed at its work center. The jobs are assigned sequentially upon arrival. All dates are specified as days from today. In what sequence should the firm process the jobs according to the SPT, EDD, and CR scheduling rules? Jobs Due Date Duration (days) 42HG 43 10 19DT 37 12 47ST 34 11 17VT 32 7 LR99 37 15

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Chapter 7, Problem 10PA

Summary Introduction

Interpretation: Average number of customer per hour processed in check out time.

Concept introduction: any flow unit, when flows through process, follows little’s law which state that the work in progress in the process of product of flow time/cycle and the through put/ flow rate.

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