Editor's Note: We received dozens of solutions to our Missing Dollar Riddle (First Off,April 2005).Here are a few.Thanks to everyone who wrote or called with their solutions.I suspect that you and your son figured this one out.Just in case,the issue is one of accounting for the right number -in this case,the US25,not US30.In other words,subtract the US2 from the US27 (US9 x 3),which equals US25 - the amount that the innkeeper retained.
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机译：编者注：我们收到了许多关于失踪美元之谜的解决方案（2005年4月，首次发行），这里有几个，感谢所有写或打电话给他们的解决方案的人，我怀疑您和您的儿子想出了这个解决方案。在这种情况下，问题是解释正确的号码之一-在这种情况下，是US25，而不是US30。换句话说，从US27中减去US2（US9 x 3），等于US25-旅馆老板保留的金额。
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