A certain city with a population of 132,000 is to be divided into 11 voting districts, and no district is to have a popu;lation that is more that 10% greater than the population of any other discrict. What is the minimum possible population on that the least populated district could have?
A.10100;
B.10800;
C.10900;
D.11000;
E.11100
Answer: D
这道题怎么解得呵?肯定很巧妙~~~
还有一个,xy=1,the value of [2(x+y)^]/[2(x-y)^]=? ( ^ 代表平方)