The people of a village started migrating to the nearby cities. The population of a village 2 years ago was 800. The rate at which migration is taking place is 10\% per annum. Find the present population of the village.
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Principle(P)=population 2years ago
=6000
Rate(R) of migration =5%
Time(T)=2yrs
A=current population
Since people are migrating, hence current population is lesser than that two years back.
Hence depreciation
∴A=P(1−
100
R
)
T
=6000(1−
100
5
)
2
=6000(
20
19
)
2
=5415
∴current population is 5415
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