大家帮我想一想，这个问题考到我了。

qq56608100

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三个人去投宿.....服务生说要 30元..... <br>
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&nbsp; &nbsp;每个人就各出了10元，凑成 30元..... <br>
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&nbsp; &nbsp;后来老板说今天特价，只要 25元..... <br>
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&nbsp; &nbsp;于是叫服务生把退的 5元拿去还给他们....... <br>
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&nbsp; &nbsp;服务生想自己暗藏 2元起来.... <br>
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&nbsp; &nbsp;于是就把剩下的 3元还给他们..... <br>
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&nbsp; &nbsp;那三个人每人拿回1元.....10-1=9表示只出了9元投宿...... <br>
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&nbsp; &nbsp;9*3+服务生的2元=29 <br>
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&nbsp; &nbsp;那剩下的1元呢?</td></tr></tbody></table>


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老板那点。</td></tr></tbody></table>


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是，在老板那点</td></tr></tbody></table>


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:funk:</td></tr></tbody></table>


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:)</td></tr></tbody></table>


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