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Puzzle ZRYO 



?

In my money box, I found $36.80 made up of equal numbers of quarters, dimes, and nickels.

How many of each coin did I find?

Puzzle Copyright © Kevin Stone

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Answer
92 of each coin.

Reasoning
There are an equal number of quarters, dimes and nickels, so we know that the answer must be a multiple of:

   25c + 10c + 5c = 40c

and:

   3680c ÷ 40c = 92 coins.

 

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