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Mathematics, 16.10.2019 07:30 shubbs1038a

Bob can do a job in 5 hours while bill can do the same job in 8. how many hours would it take them, working together, to do this job?

btw no one has the right answer plz me! just give me an answer and ill literately give you brainliest i'm in a really bad hurry right now plz me!

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