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Puzzle ZYTT 


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If …

   7/28 of 64 is 16,

   and 9/12 of 100 is 75,

   and 3/9 of 33 is 11,

what is 5/15 of 45?

Puzzle Copyright © Kevin Stone

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Answer
15.

Using normal mathematics!

5/15 of 45 = 1/3 of 45 = 15.