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Zeratel
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发表于 2007-10-11 18:29:46 |只看该作者

原帖由 sunnyshao 于 2007-10-11 17:48 发表
数学section2的 21-23题，还有20题和29题

怎么也不明白？？谁能帮忙解释一下。。。小Q数学很差很差。。。。

多谢。。

２０．销售员业绩问题．Ａ２５０００，Ｂ４００００，Ｃ６００００

所以，他们相应的奖金分配比例应该是：５，８，１２

所以把总奖金分成２５份，对应分给３个人，最多的一个拿９６００

２１．＄５００Ｘ０．２＝＄１０００Ｘ０．１

２２．最近＄４的费用，＄２００Ｘ０．２，所以选Ａ

２３．这题就是反复计算，心态要平和，肯定能算出来的

２９．不是Ｋ的机率，１－０．４＝０．６；根据独立原则，连续两次都不是Ｋ的概率就是０．６Ｘ０．６＝０．３６

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phoenixlw
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发表于 2007-10-11 18:16:54 |只看该作者

报告一下成绩先，两个V分别错了8个 12个比第二套好多了..总算消除了我对国内题的阴影~~HOHO

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and be bound to

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sunnyshao
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发表于 2007-10-11 17:48:43 |只看该作者

数学section2的 21-23题，还有20题和29题

怎么也不明白？？谁能帮忙解释一下。。。小Q数学很差很差。。。。

多谢。。

huster回复：21到23提示你下，就是斜线那段的trans fee是不变的都为10USD，直线段的trans fee persent不变；trans fee向右增加，min=10USD；trans fee向左减少，max=10USD。所以21显然，22只看ABC然后用4/2%；当然是trans fee persent最小越好，所以必有一个交易>1000USD，DE很好区分

20、29 小z解释很清晰了。

[ 本帖最后由 huster 于 2007-10-12 00:23 编辑 ]

-Two roads diverged in a yellow wood, And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth.....

- Then took the other, as just as fair, And having perhaps the better claim, Because it was grassy and wanted wear Though as for that the passing there Had worn them really about the same....

- And both that morning equally lay In leaves no step had trodden black. Oh, I kept the first for another day! Yet knowing how way leads onto way, I doubted if I should ever come back......

- I shall be telling this with a sigh Somewhere ages and ages hence......

- Two roads diverged in a wood, and I took the one less traveled by, And that has made all the difference.....

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