Question
The ratio of Opal's savings to Mary's savings is 3 : 11. If Opal saves $30 more and Mary spends $10, they will have the same amount of money. How much is Mary's savings?
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The ratio of Opal's savings to Mary's savings is 3 : 11. If Opal saves $30 more and Mary spends $10, they will have the same amount of money. How much is Mary's savings?