戰友們 !!fight!!PP43

hijenny · 发表于 2010-7-9 00:29:57

43.3798-!-item-!-187;#058&003572

Each person in a certain group supports only one of the two candidates R and T. Of the people in the group, 45 percent support Candidate R and the rest support Candidate T.How many people in the group are in favor of a flat tax?

(1)Of the people in the group who support Candidate R, 58 percent are in favor of a flat tax.

(2)Of the people in the group who support Candidate T, 22 are in favor of a flat tax.

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【答案】E

我的解法
1. 設總人口X x乘以45/100再乘以58/100 不知x

2. x乘以55/100再乘以22/100 不知x

合起來還是不知所以選E
我的式子有錯嗎?
謝謝

zhisnoopy · 发表于 2010-7-9 00:33:20

总人数不知道是没法计算How many people 的啊，我觉得LZ没错啊？答案是什么啊？？

hijenny · 发表于 2010-7-28 04:56:08

答案是E
不過我看不懂她的思路
在附件裡

hijenny · 发表于 2010-7-29 06:00:16

頂起來

fly12404 · 发表于 2010-7-29 08:46:15

有自己正確的思路就好了 : )

戰友們 !!fight!!PP43

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