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Mathematics, 26.07.2019 01:10, jess7kids98
Afather and his son clean the house together in 2 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: 1
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Afather and his son clean the house together in 2 hours. when the son works alone, it takes him an h...
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