The current birth rate per certain number of people is 32, whereas corresponding death rate is 11 per same number of people. If the net growth rate in terms of population increase is 2.1 percent, find number of persons.(initally) Select:	A) 1000	B) 10000	C) 100	D) 2000	E) 20000
Sol.   Net growth on X = (32- 11)= 
<gadget id="calculator">(32- 11)</gadget>
<output>21</output>
21.   Net growth on 100= (21/X Ã— 100)% = 2.1%. Then X = 1000   1000nswer:1000
<result>A</result>
The current birth rate per certain number of people is 32, whereas corresponding death rate is 11 per same number of people. If the net growth rate in terms of population increase is 2.1 percent, find number of persons.(initally)