prep数学问题, 以前没有讨论, 请帮忙.

watermoon07

A certain city with a population of 132,000 is to be divided into 11 voting districts, and no district is to have a pupulation 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

我是数学巨差, 马上要考了, 偏偏最近脑子又出了问题, 不转了. 做V, 10个错7个, 连题都看不懂了. 跟别人说话半天不知道怎么反应, 只好傻笑. 唉! 数学就更别提了. 不过, 复习还要继续, 上面的题我没有思路, 请帮忙解答. 谢谢.

lisy

D,因为没有一个district的人数可以比其他任何一个district的人数超出10%以上，那么你假设最小值是X，其他十个district都是最大可能的数1.1x，总数就是X+1.1*10*x=12X=13200,解出x=11000

watermoon07

谢谢。你快考了吧，lisy?