SOLUTION: a printing shop starts a job at 10 A.M. on press A. Using this press alone, it would take 10 hours to complete the job. At 2 P.M. press B is also turned on, and both presses togeth
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-> SOLUTION: a printing shop starts a job at 10 A.M. on press A. Using this press alone, it would take 10 hours to complete the job. At 2 P.M. press B is also turned on, and both presses togeth
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Question 857662: a printing shop starts a job at 10 A.M. on press A. Using this press alone, it would take 10 hours to complete the job. At 2 P.M. press B is also turned on, and both presses together finish the job at 5 P.M. How long would it take press B to do the job alone? Answer by richwmiller(17219) (Show Source):