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A country has a population of 30 million and a natural increase rate of 17 per thousand. With zero migration, what is the approximate natural increase in one year?

Answer and explanation

Correct answer: 510000

A natural increase rate of 17 per thousand means that 17 people are added naturally for every 1,000 people in the population. Since the population is 30 million and migration is zero, there is no migration gain or loss to adjust the result. The rate should be converted by dividing by 1,000.

The calculation is \(30,000,000\times\frac{17}{1000}=510,000\). Thus the approximate natural increase in one year is 510,000 people, so option B is correct. With zero migration, this natural increase is also the total population increase for the year. Confusing 17 per thousand with 17% would produce a much larger and incorrect value.

Related tags

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

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