Question

The population of a city increase by 30% every year. If the present population is 3,38,000 Then the population of city after 2 years

Answer 1

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Answer 2

Step-by-step explanation:

Present Population = 3,38,000

% increase every year = 30%

Population after 1st year = 3,38,000 * 130/100 = 4,39,400

Now this becomes the base for next year.

Population after 2nd year = 4,39,400 * 130/100 = 5,71,220

ALTERNATE:

Population at the end of 2 years = 3,38,000 * 130 * 130/100*100 = 5,71,200

[Even the formula to find 'Amount' in compound interest can be applied here. A = P [1 + R/100]^n... P=3,38,000; R=30% ; n=2 years]