Question
Zoey and Noah shared a sum of money in the ratio 1 : 2. After Zoey spent $81, the ratio became 2 : 7. How much money did Zoey at first?
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Zoey and Noah shared a sum of money in the ratio 1 : 2. After Zoey spent $81, the ratio became 2 : 7. How much money did Zoey at first?