Let the total population be 100
Then population of County A = 31 and County B = 22.
The combined population of County A and County B = 31 + 22 = 53
The combined population of all other counties = 100-53 = 47
Now the question asks -
the combined population of the two most populous counties in State X is what percent greater than the combined population of all other counties?In absolute numbers, the combined population of the two most populous counties in State X is 6 greater than the combined population of all other counties.
In terms of percent, how much is it greater? If 53 is 6 greater than 47, then in terms of percentage it would be the fraction 6/47 multiplied by 100. The answer will be greater than 12 so the nearest answer in the choices is
C or 13.
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