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If an area has four lakh births, two and a half lakh deaths and half lakh net migration, what will be the total growth?

Answer and explanation

Correct answer: Two lakh

Direct answer: Option B, two lakh, is correct. First calculate natural increase by subtracting deaths from births: 4 lakh − 2.5 lakh = 1.5 lakh. Then include net migration, because total population growth includes natural increase plus net migration: 1.5 lakh + 0.5 lakh = 2 lakh. Option B gives the correct total. Option A ignores part of the calculation and is too small. Option C is the death figure, not total growth. Option D is only the number of births and fails to subtract deaths or add migration correctly. Memory cue: total growth = (births − deaths) + net migration; keep all quantities in the same unit.

Related tags

BirthsDeathsNet MigrationTotal GrowthProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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