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Old 2007-11-14, 18:09   #11
Wacky's Avatar
Jun 2003
The Texas Hill Country

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Originally Posted by davieddy View Post
Slight quibbles:
What if <even counterpart> is 100?
Leave it to the last.

There are 10 odd tokens whose value is a multiple of 5.
At most 9 of them could be otherwise required on the boundary.
Therefore there is at least one available to be paired with "100"

Last fiddled with by Wacky on 2007-11-14 at 20:21 Reason: Clarify that I was referring to only the tokens on the "odd" side
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