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If one area's population rose from 4000 to 5000 and another from 40000 to 44000 which has higher growth rate?

Answer and explanation

Correct answer: First area's

Direct answer: Option A. First calculate the increase, then divide it by the starting population. In the first area, the increase is 5,000 − 4,000 = 1,000. Its growth rate is 1,000 ÷ 4,000 × 100 = 25%. In the second area, the increase is 44,000 − 40,000 = 4,000, but its rate is 4,000 ÷ 40,000 × 100 = 10%. Thus the second area gained more people in absolute numbers, but the first area grew faster relative to its original size. Option A is correct. B confuses absolute increase with percentage growth. C is wrong because 25% and 10% are not equal. D is wrong because both populations increased, not decreased. Memory cue: growth rate means change divided by the starting value.

Related tags

Growth RatePercentage ComparisonBase PopulationPopulation GrowthPopulationGeographyClass 9 Mcq

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