作者minie (GoGoGo)
看板GMAT
標題[計量] PP1
時間Sat Jan 3 19:04:30 2009
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?
A. 10,700
B. 10,800
C. 10,900
D. 11,000
E. 11,100
ANS:D
可否幫忙解答 謝謝!
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推 chihkai:這題我是先假設某一個區的人數為X 另外10個區都比這區多10 01/03 20:14
→ chihkai:% 所以就是1.1X X+1.1X*10=132,000 12X=132,000 X=11,000 01/03 20:15
→ chihkai:不知道這樣做對不對 01/03 20:15