The present population of a city is 18522000. If it has been increased at the rate of 5% per annum,find the increase in number pf population from the population 3 years ago

Question

asked Feb 2, 2021 229k views

1 Answer

Anthi · Answer 1 · 2021-02-06T08:16:23+0000

Answer:

Increasing
=2522000

years ago population
=16000000

Explanation:

Let
years ago population

If initial amount
=P, rate of increase
and time

after
years amount
(A)=P(1+(r)/(100))^t

Hence
A=18522000

$P=x\\r=5\%\\t=3\ years$

$18522000=x(1=(5)/(100))^3\\\\18522000=x(1.05)^3\\\x=(18522000)/((1.05)^3)\\\\x=(18522000)/(1.1576625)\\\\x=16000000$

$3\ years\ ago\ population\ =16000000\\\\Increase=1852000-16000000\\\\=2522000$