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Industrial Engineering Miscellaneous

Industrial Engineering

  1. Five jobs (J1, J2, J3, J4 and J5) need to be processed in a factory. Each job can be assigned to any of the five different machines (M1, M2, M3, M4 and M5). The time duration taken (in minutes) by the machines for each of the jobs, are given in the table. However, each job is assigned to a specific machine in such a way that the total processing time is minimum. The total processing time is _____ minutes.
    1. 146 min
    2. 144 min
    3. 143 min
    4. 142 min
Correct Option: C


Step-1 Substracting each row with minimum value of each respective row.

Step 2: Substracting each column with minimum value of each respectively value.

Step-3 By assigning row and column

Step-4

Step-5 Minimum time = 28 + 30 + 28 + 22 + 38
= 146 min



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