Question: Correct answer is 5 . Please show the solution. Thank you! A product requires two sequential machine operations. The first takes 3.5 minutes and the

Correct answer is 5 . Please show the solution.Correct answer is 5. Please show the solution. Thank you!

A product requires two sequential machine operations. The first takes 3.5 minutes and the defect percentage is 12. The second takes 6.0 minutes and the defect percentage is 7 . In another similar plant belonging to the same company, past annual data on identical operations and working conditions indicate that a total of 2,198 hours due to set up of machines and 2,052 hours due to machine unavailability due to maintenance per year out of the 250 work days per year and a daily shiff of 10 hours. It is desired to determine the minimum fractional number of machines to manufacture 50,000 units per year

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