A firm wants to install automatic machines to produce 250,000 castings – McqOptions

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1.	A firm wants to install automatic machines to produce 250,000 castings per annum. The operation takes 1.5 minute of machine time and about 2% products are defective. Each machine is available for 2,000 hours of capacity per year. How many machines are required?
A.	6
B.	5
C.	4
D.	None of these
Answer» D. None of these

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