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Mathematics, 27.10.2020 14:10 rainbowboi

A and B can do a job together in 25 days after 15 days of working together B lives if they complete the remaining part of the job in 20 days how long would it take to complete the job working separately

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A and B can do a job together in 25 days after 15 days of working together B lives if they complete...
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