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A country has a population of 45 million and a natural increase rate of 14 per thousand. With zero migration, what is the natural increase in one year?

Answer and explanation

Correct answer: 630000

A natural increase rate measures the difference between births and deaths, without including migration. A rate of 14 per thousand means that, on average, there are 14 more people for every group of 1,000 people during one year. Since migration is zero, the natural increase is also the total population change caused by births minus deaths in that year.

The population is 45 million, or 45,000,000 people. Applying the rate gives \(45{,}000{,}000 \times \frac{14}{1000} = 630{,}000\). Thus, the natural increase is 630,000 people in one year, so option C is correct. The answer is not 14 percent; “per thousand” must be converted by dividing by 1,000. Zero migration does not make the increase zero because births still exceed deaths.

Related tags

Natural Increase CalculationPer ThousandPopulation BaseDemography MathsPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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