the population of a town was 705600 in the year 2015. it increases at the rate of 5 per annum (a) what would be it's population in the year2017? (b) what was it's population in the year 2013
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Answer:
N
0
- Initial population
r - Rate at which population changes
n - Number of years
Population after n years = N
+
=N
0
(1+r)
n
Population before n years = N
−
=
(1+r)
n
N
0
The population after 2 years = 176400(1+0.05)
2
=194481
The population before 2 years =
(1+0.05)
2
176400
=16000
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