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Worker a works at a constant rate and, working alone, can complete a job in 6 hours. worker b works at a constant rate and, working alone, can complete the same job in 5 hours. worker c works at a constant rate and, working alone, can complete the same job in 3 hours.
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Worker a works at a constant rate and, working alone, can complete a job in 6 hours. worker b works...
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