Question

in a city ,every year the population increase is 10% . If the present population of the city is 2420.what is the population 2 years ago.. answer this question with step by step explaination I will mark it as a brainliest
the answer is 2000 but how I didn't get
please anyone solve this question
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Answer 1

Let the population before two years ago be x

Given the population increases by 10%

So increase in population after one year is

100

10

×x=0.1x

So population after one year is x+0.1x=1.1x

Increase in population after another one year is

100

10

×1.1x=0.11x

So population at present is 1.1x+0.11x=1.21x

But given population at present is 3,02,500

⟹1.21x=302500

⟹x=

1.21

302500

=2,50,000

please brainlest mark