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If there are 1600 births, 1200 deaths, 300 in-migrants and 700 out-migrants, what will the total change be?

Answer and explanation

Correct answer: Zero

Answer: A, zero. The safest method is to calculate natural change and net migration separately. Natural change equals births minus deaths: 1,600 − 1,200 = +400. This alone would increase the population by 400. Net migration equals in-migration minus out-migration: 300 − 700 = −400. This would reduce the population by 400 because 400 more people leave than enter. Now combine them: total change = +400 + (−400) = 0. The increase from births exactly balances the decrease caused by migration. Option A is therefore correct. Option B considers only births and deaths and ignores out-migration. Option C adds quantities without applying the correct signs. Option D notices the migration decrease but ignores the natural increase. Zero total change does not mean no births, deaths or migration; it means the positive and negative effects cancel each other.

Related tags

Population BalanceNatural IncreaseNet Migration CalculationProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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