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If two countries have the same population growth rate, but the first country has a larger base population, which country will have the larger absolute increase?

Answer and explanation

Correct answer: The first country

Answer: A, the first country. Population growth rate is usually expressed as a percentage of the starting, or base, population. To compare absolute increase, first write the rule: absolute increase = base population × growth rate ÷ 100. If the rate is the same for both countries, the country with the larger base is multiplying that same percentage by a larger number. For example, at 10%, a population of 100 lakh increases by 10 lakh, while a population of 20 lakh increases by only 2 lakh. Thus the percentage rate is equal, but the number of people added is different. A is correct because the first country has the larger base. B is wrong because the smaller base gives a smaller addition at the same rate. C is wrong because a positive rate produces an increase, not zero. D is wrong because absolute increase depends directly on both the rate and the base. Memory cue: same percentage, bigger base means bigger numerical change.

Related tags

Population GrowthBase PopulationAbsolute IncreasePopulationGeographyClass 9 Mcq

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