GMAT数学一题
Acertaincitywithapopulationof132,000istobedividedinto11votingdistricts,andnodistricti...
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?
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总共11个区, 要使最小区人数呈最小值, 则其他10个区人数均呈最大值.
设最小区的人数为 x , 即为:
x + 10(1+10%) x = 132,000
x=1,100
设最小区的人数为 x , 即为:
x + 10(1+10%) x = 132,000
x=1,100
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