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Mathematics, 08.01.2021 22:50 jshehehdh

Elias and Niko are polishing the silver at the heritage museum. Elias could polish all the silver himself in 40 minutes. That task would take Niko 50 minutes to complete alone. Which table is filled in correctly and could be used to
determine how long it would take it Elias and Niko polished the silver together?

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