Question

Palatpur is a small town. The population of Palatpur in the year 2015 was 35000. It is increasing at the rate of 2% per annum.
(a) Find the increase in population of Palatpur from 2011 from 2017

Answer 1

Step-by-step explanation:

let x be the population of the village from 2011 to 2017.

$2\% \times x = 35000 \\ \frac{2x}{100} = 35000 \\ \frac{100 \times 2x}{100} = 100 \times 35000 \\ 2x = 3500000 \\ x = \frac{3500000}{2} = 1750000$

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Answer 2

Step-by-step explanation:

Population in the year=35000

it increased by 2%per year

From 2015to 2016=35000+35000*2/100

=35700

From 2016to2017=35700+35700*2/100

=36414

From 2014to2015= 35000-35000*2/100

=34300

From 2013to2014=34300-34300*2/100

=33614

From2012to2013=33614-33614*2/100

=32941

From 2011to2012=32941-32941*2/100

=32282

From 2011to2017=36414-32282=4132