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

Answer and explanation

Correct answer: Seven per thousand

Direct answer: C, seven per thousand. First calculate natural increase: birth rate minus death rate = 15 − 10 = 5 per thousand. Total population growth also includes net migration, so add the positive net migration of 2 per thousand: 5 + 2 = 7 per thousand. A is wrong because it does not follow from either the natural increase or the total calculation. B is only the natural increase and leaves out migration. D adds all listed numbers, including the death rate, but deaths must be subtracted rather than added. The complete formula is total growth rate = birth rate − death rate + net migration rate. Memory cue: births and arrivals add; deaths and departures reduce the total. Because all quantities use the same per-thousand unit, the final answer remains per thousand.

Related tags

Total Growth RateNet MigrationNatural IncreasePer ThousandProcesses Of Population ChangePopulationGeographyClass 9 Mcq

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