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If birth rate is fifteen per thousand and death rate is ten per thousand and net migration is two per thousand, what is total growth rate?

Answer and explanation

Correct answer: Seven per thousand

The direct answer is B: seven per thousand. Total growth includes both natural increase and net migration. First calculate natural increase by subtracting deaths from births: 15 per thousand − 10 per thousand = 5 per thousand. The question also gives net migration of 2 per thousand. Because net migration is positive, add it to the natural increase: 5 + 2 = 7 per thousand. Therefore, the total growth rate is 7 per thousand. Option A is only the natural increase and leaves out migration. Option B is correct because it includes both parts. Option C is not obtained from the given formula and does not represent either the complete calculation or a relevant single component. Option D adds the birth rate and migration without subtracting deaths, so it overestimates growth. Memory cue: total growth = birth rate − death rate + net migration.

Related tags

Total Growth RateNet MigrationNatural IncreasePopulation GrowthPopulationGeographyClass 9 Mcq

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