Question

12. a) Find the optimum assignment of jobs to machines and the corresponding
time: Four jobs can be processed on four different machines, one job on
one machine. Resulting times in minutes vary with assignments, they are
given below:
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Answer 1

Answer:

please help me l will put the brain list answer for the correct one3. A ribbon is placed on a loop of the spring; the ribbon vibrates but it does not propagate with the wave.

Explain the result.

Answer 2

Answer:

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