A factory producing machine parts calculated that on average about \(10\%\) of the manufactured parts are defective and

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A

B

C

D

E

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A factory producing machine parts calculated that on average about \(10\%\) of the manufactured parts are defective and must be rejected before shipment to buyer. The factory promised to supply \(7200\) parts priced at \(\$10\) for each part. It estimated that the overall profit on all the manufactured parts will be \(25\%.\) How much did it cost the factory to produce one part?

A. \(\$5.60\)
B. \(\$6.00\)
C. \(\$7.20\)
D. \(\$8.00\)
E. \(\$9.75\)

The OA is C
Source: — Problem Solving |