一道数学题，算了好几遍，还是错了，请大家帮帮忙

amber4cdream · 发表于 2016-11-22 17:15:50

题目：
Population of The United States in 1800 and 1900

Year    Population Population per Square Mile
1800    5.3 million    6.1
1900    76.0 million 25.6

By approximately how many square miles did the area of the United States increase from 1800 to  1900?

A. 360,000
B. 2,000,000
C. 3,625,000
D. 20,000,000
E. 36,250,000

我怎么算都是B. 2,000,000
答案是 D. 20,000,000

请大家帮帮忙！
谢谢各位！

一道数学题，算了好几遍，还是错了，请大家帮帮忙

所属分类: GRE考试

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