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If 300 people enter and 750 people leave, what will the net migration be?

Answer and explanation

Correct answer: Negative 450

The correct answer is B: negative 450. Use the formula net migration = in-migration − out-migration. Substituting the values gives 300 − 750 = −450. The minus sign means that 750 people left but only 300 entered, so the number leaving was 450 greater than the number entering. Thus the area experienced a net loss of 450 people through migration. Option A has the correct size of the difference but the wrong sign; it would be correct only if more people entered than left. Option B is correct because both the amount and direction are correct. Option C is wrong because the two numbers are not equal. Option D is wrong because adding 300 and 750 gives 1050, which is total movement, not net migration, and its sign is also wrong. Do not confuse the absolute difference with its direction. Memory cue: when “out” is bigger than “in,” net migration is negative.

Related tags

Negative Net MigrationOut-MigrationCalculationPopulation LossProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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