Question
Xuan spent 12 of her money on some wafers and 37 of her remaining money on 5 croissants. Each croissant cost thrice as much as a wafer. How many wafers did she buy?
4 m

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Xuan spent 12 of her money on some wafers and 37 of her remaining money on 5 croissants. Each croissant cost thrice as much as a wafer. How many wafers did she buy?