In the City ,there are 40% of the population lived in the North side at the Beginning of the Year and the rest lived in the South side. During the Same Year, the population grew by 6%. If the population in the North grew by 2%, by how much did the population grow in the South side?  Pick one:
A) 8.6% B) 7.28% C) 9.2% D) 10.0% E) 8%
Ratio of population in City = North:South :: 40%:60% = 2:3   Mean growth = 6%   North side: 2%   South side = ??   North-------------8.6%verage--------------South   2 __(3n)_____6.0%_____(2n)_____??   Since:   2+3n=6   n=4/3   Therefore:   South=6+2n   South=6+2(4/3)   The population increased in the south grew by 8.6%
<result>A</result>
In the City ,there are 40% of the population lived in the North side at the Beginning of the Year and the rest lived in the South side. During the Same Year, the population grew by 6%. If the population in the North grew by 2%, by how much did the population grow in the South side?