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Mathematics, 05.05.2020 20:14 neather

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A father and his son can clean the house together in 7 hours. When the son

works alone, it takes him an hour longer to clean than it takes his dad alone.

Find how long it takes the son to clean alone.

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Answers: 2

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A father and his son can clean the house together in 7 hours. When the son

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