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tough problem

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by sumasajja » Thu Jul 28, 2011 4:05 am
if the percent increase in the population from 1910 to 1920 had been approximately the same as the percent increase from 1900 to 1910,the 10 year increase ,in millions, from 1910 to 1920, would have been approximately
a]3
b]6
c]16
d]19
e]29
the answer to the problem is d 19
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by sumasajja » Thu Jul 28, 2011 5:40 pm
i found the problem hard ..to solve can any1 please explain?
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