Mathematics, 22.11.2020 05:40 lilyclairehutson
9. A and B working together can complete a job in 20 hours. If each worked on the
job alone, B takes 9 hours longer than A. How long would it take each to work on
the job alone?
Answers: 1
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9. A and B working together can complete a job in 20 hours. If each worked on the
job alone, B take...
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