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If there are 900 births and 1100 deaths, but net in-migration is 500, what is the total population change?

Answer and explanation

Correct answer: Increase of 300

Answer: B, an increase of 300. First calculate natural change: births − deaths = 900 − 1100 = −200, meaning a natural decrease of 200. Then add net in-migration: −200 + 500 = +300. Therefore, the population increases by 300 overall. A considers births and deaths but ignores migration. C counts only migrants and ignores the natural decrease. D incorrectly adds births, deaths and migrants, even though deaths reduce population. The key sequence is: natural change = births − deaths; total change = natural change + net migration.

Related tags

Natural DecreaseNet In-MigrationTotal Population ChangePopulation ArithmeticPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeography

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