Question
Xandra and Mary were given the same amount of pocket money. After Xandra had spent $18 and Mary had spent $6, the amount of pocket money Mary had became thrice that of Xandra's. How much pocket money was given to each girl?
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Xandra and Mary were given the same amount of pocket money. After Xandra had spent $18 and Mary had spent $6, the amount of pocket money Mary had became thrice that of Xandra's. How much pocket money was given to each girl?