Re: tough logic problem
Excellent question. Quick question: can m=n?
I'll give my reasoning so far: clearly m and n are not prime numbers, otherwise X would easily be able to tell exactly what they are. Likewise, the sum of the two numbers indicates that they are not prime, which tells Y that X couldn't know what the numbers are. So...
What numbers between 4 and 200 (or 5 and 199, if m doesn't equal n) are clearly not the sums of prime numbers? Sounds like a number-cruncher to me... but then there are only 197 possibilities. Maybe I'll go through all of them. [img]/images/graemlins/grin.gif[/img]
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