Question
Ethan had 8 times as much money as Riordan. After Ethan had spent $115, he had thrice as much money as Riordan. How much money did Riordan have?
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Ethan had 8 times as much money as Riordan. After Ethan had spent $115, he had thrice as much money as Riordan. How much money did Riordan have?