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If an area has 3500 births, 2100 deaths, 600 in-migrants and 1000 out-migrants, what will total growth be?

Answer and explanation

Correct answer: 1000

The direct answer is A: total growth is 1,000 people. Solve it in two clear steps. First calculate natural increase: births minus deaths = 3,500 − 2,100 = 1,400. Next calculate net migration: in-migrants minus out-migrants = 600 − 1,000 = −400, meaning the area lost 400 people through migration. Add the two components: 1,400 + (−400) = 1,000. Option B is only the natural increase and ignores migration. Option C incorrectly adds the two migration figures or combines the components wrongly. Option D adds all numbers without considering that deaths and out-migration reduce population. Memory cue: total growth = (births − deaths) + (in-migration − out-migration); people entering add, while deaths and departures subtract.

Related tags

Population CalculationNet MigrationNatural IncreasePopulation GrowthPopulationGeographyClass 9 Mcq

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