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A country has a population of 150 million and an annual growth rate of 0.72 percent. Approximately how much will it grow in one year by simple calculation?

Answer and explanation

Correct answer: 1080000

The percentage tells us what fraction of the starting population is added during one year. A rate of 0.72% means 0.72 persons for every 100 persons, so it must be applied to the full population of 150 million. The result is an increase, not the new total population. This distinction is important because the question asks how many people are added in one year.

Using the simple percentage calculation, increase = \(150000000\times\frac{0.72}{100}\) = \(1080000\). Thus, approximately 1.08 million, or 10.8 lakh, people will be added. Option C is correct. The answer is approximate because it uses a fixed annual rate and ignores changing rates, deaths, and migration during the year.

Related tags

Annual Growth RatePopulation BaseAbsolute IncreasePercentage CalculationPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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