Mathematics, 25.02.2021 01:00 MilanPatel
11. An old machine requires three times as many hours to complete a job as
a new machine. When both machines work together, they require 9 hours
to complete a job. How many hours would it take the new machine to
finish the job operating alone?
Answers: 3
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11. An old machine requires three times as many hours to complete a job as
a new machine. When both...
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