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city has 3 new houses for every 7 old houses. If there are 27 new houses in the city, how many old houses are there?
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city has 3 new houses for every 7 old houses. If there are 27 new houses in the city, how many old houses are there?

User Luis Mendo
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Divide 7 by 3 to multiply it by 27 to get 12.5 meaning only 12 houses are there
User Cybergoof
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