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If an area has 1,200 births, 800 deaths and net migration of negative 600, what will be the total change?

Answer and explanation

Correct answer: Decrease of 200

The direct answer is B: a decrease of 200 people. First calculate natural change by subtracting deaths from births: 1,200 − 800 = 400, so there is a natural increase of 400. Net migration is −600, meaning 600 more people left than entered. Add the two components: total change = natural change + net migration = 400 + (−600) = −200. The negative sign means a decrease of 200. Option A ignores the negative migration. Option C treats the migration loss as a gain. Option D incorrectly adds all figures without subtracting deaths or recognising the negative sign. A useful warning is that “negative net migration” must be entered as a negative number, not as a positive addition.

Related tags

Growth CalculationNet MigrationNatural IncreaseProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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