Question
The age of Will is 23 of Riordan's age. 10 years ago, the ratio of Will's age to Riordan's age was 4 : 7. How old is Riordan now?
2 m

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The age of Will is 23 of Riordan's age. 10 years ago, the ratio of Will's age to Riordan's age was 4 : 7. How old is Riordan now?