作者reznor (Hear No Evil)
看板GMAT
標題Re: [計量] Prep Test1
時間Tue Dec 4 16:43:39 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 ^^
假設最小的選區人口為a
a最小的狀況就是當其他十個選區都剛好比a多10%
a + (1.1a) x 10 = 132000
a = 11000
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