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Mathematics, 03.12.2020 17:00 dereklilgoat

Anna and Elsa are helping set up for the Christmas celebration at Magic Kingdom. They have to install 7 million lights for the annual display. It takes Elsa 14 days to set up the 7 million lights by herself and it takes Anna 11 days to set up the 7 million lights by herself. How long will it take them to do it together?

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Anna and Elsa are helping set up for the Christmas celebration at Magic Kingdom. They have to instal...

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