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If births are 600, deaths are 250, in-migration is 150 and out-migration is 200, what will be the actual change?

Answer and explanation

Correct answer: 300

The direct answer is B: the actual change is 300 people. Actual change includes both natural change and net migration. Add the processes that increase the local population: births plus in-migration = 600 + 150 = 750. Then add the processes that reduce it: deaths plus out-migration = 250 + 200 = 450. Subtract reductions from additions: 750 − 450 = 300. The same result comes from the formula 600 − 250 + 150 − 200 = 300. Option A, 250, does not correctly balance all four figures. Option B is correct because it follows the complete calculation. Option C, 500, can result from using an incorrect sign or omitting a flow. Option D, 700, is also not produced by the correct balance. Memory cue: births and arrivals are plus; deaths and departures are minus.

Related tags

Actual ChangeNumerical ProblemMigration BalanceProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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