Question:
In 2005, for each of the 14 million people present in a country, 0.028 were born and 0.008 died during the year. Using exponential equation, the number of people present in 2015 is predicted as:
(solve this with explantion plz....)
a. 25 millions b. 17 millions c. 20 millions d. 18 millions
Answer:
N/T = rN
N/T = 0.020x14 million
N/10 = 0.28
N = 2.8 million
N = Nf - Ni = 2.8
dN/dT = rN
as we know that r = b-d
r = 0.028-0.008
= 0.020
N = initial poulation = 14 million
Nf = 2.8 + 14 = 16.8 million
So answer is (b) 17 million.
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