作者paca (very funny,Peter)
看板GMAT
標題Re: [計量] Prep Test1
時間Tue Dec 4 16:46:39 2007
※ 引述《mildblue (北極融化中)》之銘言：
: A certain city with a population of 132,000 is to be divided into 11 voting
: districts, and no district is to have a population that is more than 10
: percent greater than the population of any other district, what is the
: minimum possible population that the least populated district could have?
: （1）10,700
: （2）10,800
: （3）10,900
: （4）11,000
: （5）11,100
: Ans:4
: 我怎麼算都是10,800
: 請各位幫忙，謝謝 ^^
最小區人最少的狀況，就是少的票被其他區均分了
設最少的區，少了X人
[12000+(x/10)]-(12000-x)=10%(12000-x)
=> x=1000
12000-1000=11000
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