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If there are 1,000 births, 650 deaths, and net migration of 150, what will be the total population change?

Answer and explanation

Correct answer: 500

The correct answer is B: 500. Apply the formula total change = births − deaths + net migration. First calculate natural increase: 1,000 − 650 = 350. Then add the positive net migration of 150: 350 + 150 = 500. Equivalently, 1,000 − 650 + 150 = 500. Option B is correct because it includes all three figures with the proper signs. Option A, 300, does not follow the calculation and is smaller than the natural increase even though migration is positive. Option C, 850, may result from an incorrect combination of the numbers and does not represent the formula. Option D, 1,800, adds all figures without treating deaths as a reduction, so it is not a population change. The word “net” before migration means that the migration balance has already been calculated; it should be added once, not calculated again. Memory cue: calculate births minus deaths first, then add positive net migration.

Related tags

Total Population ChangeDemographic CalculationNatural IncreaseNet MigrationProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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