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Mathematics, 17.11.2020 21:50 kianarice55otaivh

It takes Sam 4 hours to rake the front lawn, while his brother, Dave, can rake the lawn in 2 hours. How long will it take them to rake the lawn working together?

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It takes Sam 4 hours to rake the front lawn, while his brother, Dave, can rake the lawn in 2 hours....

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