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If there are 6000 births, 4200 deaths, 1300 in-migrants and 2700 out-migrants, what will the total change be?

Answer and explanation

Correct answer: Increase of 400

Answer: A, an increase of 400. First find the natural increase: births minus deaths = 6,000 − 4,200 = +1,800. Next find net migration: in-migration minus out-migration = 1,300 − 2,700 = −1,400. The negative sign means that 1,400 more people left than entered. Combine the components: total change = +1,800 + (−1,400) = +400. Thus the population still grows, but the migration loss reduces the natural increase from 1,800 to 400. Option A is correct. Option B gives only the natural increase and ignores the migration loss. Option C gives the size of the net migration loss but ignores births exceeding deaths. Option D adds the figures without respecting which processes add and which remove people. Always attach signs before combining: births and in-migration are positive; deaths and out-migration are negative.

Related tags

Population CalculationNatural IncreaseNet MigrationProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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