The current birth rate per thousand is 52, where as corresponding death rate is 11 per thousand. The net growth rate in terms of population increase in percent is given by? Pick
A) 4.1%  B) 3.2%  C) 3.9%  D) 4%  E) 5.1%
Net growth on 1000 = 52-11= 
<gadget id="calculator">52-11</gadget>
<output>41</output>
41   Net growth on 100= 41*100/1000= 
<gadget id="calculator">41*100/1000</gadget>
<output>41/10 = around 4.1</output>
4.1%   4.1%nswer is 4.1%
<result>A</result>
The current birth rate per thousand is 52, where as corresponding death rate is 11 per thousand. The net growth rate in terms of population increase in percent is given by?