1 . At present Lili is 23 years old and Medrin is 15 years old. How many years ago was Lili twice as old as Mehrin?
- A. 7
- B. 16
- C. 9
- D. 5
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1 . At present Lili is 23 years old and Medrin is 15 years old. How many years ago was Lili twice as old as Mehrin?
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