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[IQ逻辑] 延续 一道小学二年级数学题!看pg4有人在搞笑!很好笑! |
原帖由 StarOcean 于 2009-12-8 04:08 PM 发表
1:给年轻人21(如果没被骗可以卖21而不是18)+79(街坊的钱79/100)=100(人家给我们100块钱,我们当然要给回他同等价值的剩钱+商品)
2:发现假钞,要还100给街坊,不过之前只给年轻人79,So剩21并只需还多7 ...
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