Question

The population of a town is increasing at the rate of 5% per annum. if the present population is 44,100, then what was the populatin 2 years ago? also find population after one year

Answer 1

if there is 5% increase in population every year then there will be 5% decrease in population every year.

By ci method:

P=44,100

T=2yrs

R=5%

A=P(1-R/100)^T

=44100(1-5/100)^2

=44100(1-1/20)^2

=44100(20-1/20)^2

=44100(19/20)^2

=44100*19/20*19/20

POPULATION BEFORE 2YRS=39800

P AFTER 1 YEAR WILL BE

BY SI METHOD:

SI=P*R*T/100

=44100*5*1/100

=2205

A=P+SI

=44100+2205

POPULATION AFTER 1YR=46305

mARK AS bRAINLEST

Answer 2

5%is increases every year