Prep模考软件中一数学题，不知该怎么做，恳请NN解答

拿铁咖啡

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 ?
答案是11,000虽然做对，但是蒙的，想NN给出解答

jiuweilinghu

132000/11=12000：11个城市的平均数要使得最小，满足的条件是：1个城市取最小值，剩下的10个城市同时取可以得到的最大值（即不超过10%）
设x为比12000平均数小的量
则，最小的城市的值=12000-10x；剩余10个城市=12000+x
则，(12000-x)*1.1=12000+x
得出x=100
即min=11000

拿铁咖啡

那个等式是（12000-10x)*1.1=12000+x，还有x是比12000平均数大的量
恩，知道了，THX