Question
Shiyun spent 23 of her money on some tarts and 34 of her remaining money on 9 puffs. Each puff cost twice as much as a tart. How many tarts did she buy?
4 m

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Shiyun spent 23 of her money on some tarts and 34 of her remaining money on 9 puffs. Each puff cost twice as much as a tart. How many tarts did she buy?