the population of a town increased every year by 10%. At the end of two years, the total population of the town was 30,000. If 5800 people were added by migration, what was the population of the town in the beginning?
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the population of the town in the beginning (p)= 20,000
Step-by-step explanation:
given
the population of a town increased every year (R) =10%
the total population of the town (pt)=30,000
people were added by migration (I) = 5800
time (T) = 2yrs
the population of the town in the beginning (p)=?
we know
pt = p(1+R\100)^T + add migration
30000 = p(1+10\100)^2 + 5800
30000 - 5800 =p(1.1)^2
24,200 = 1.21p
20,000 = p
the population of the town in the beginning (p)= 20,000
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