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A province has a natural increase of 30000 but net migration of -45000. What is the total change?

Answer and explanation

Correct answer: Decrease of 15000

Total population change combines natural increase with net migration. Natural increase is already a signed value: positive 30000 means births exceed deaths by that amount. Net migration of -45000 means 45000 more people leave than enter. Adding these signed quantities gives the overall change, so the migration loss can outweigh the natural increase.

The calculation is \(30000 + (-45000) = -15000\), or \(30000 - 45000 = -15000\). Thus the province loses 15000 people overall, making option A correct. It is not a decrease of 45000 because natural increase offsets part of the migration loss. Nor is it an increase, since the negative migration balance is larger than the natural increase.

Related tags

Negative Net MigrationTotal Population DeclineNatural IncreaseOut MigrationPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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