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While solving a puzzle, I misinterpreted the whole thing and ended up creating a new harder puzzle. Here it is:

You have 2 cups filled with water, cup A is 5oz and cup B is 3oz. How can you get one cup to be filled with the difference in water between the 2 cups?

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    $\begingroup$ Are you sure this is a "harder puzzle" than the original? $\endgroup$ – NL628 Apr 13 '18 at 19:44
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The simplest way, if I've understood the question right, would seem to be

to empty out cup B, then fill B from A. Now what's left in A is the difference between the two.

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  • $\begingroup$ That works and is a different solution than I came up with. $\endgroup$ – Noah Cristino Apr 13 '18 at 19:32
  • $\begingroup$ @иσαнcяişтiпσ What was your solution? $\endgroup$ – Mike Earnest Apr 13 '18 at 20:32

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