Posted by **Nate Williams** on Wednesday, May 8, 2013 at 2:01am.

Ruthie has 10 coins, all either nickels, dimes, or quarters. She has N nickels, D dimes, and Q

quarters, where N, D, and Q are all different, and are each at least 1. Amazingly, she would have

the same amount of money if she had Q nickels, N dimes, and D quarters. How many cents does

Ruthie have?

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