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Mathematics, 06.09.2021 04:30 izzyisawesome5232

3. John and Nelly are cleaning their house. Nelly takes 3 hours longer than John if she cleans the house alone. If they can do the cleaning together in 2 hours, how long can John clean all by himself?

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3. John and Nelly are cleaning their house. Nelly takes 3 hours longer than John if she cleans the h...

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