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A country has a population of 200 million and a total growth rate of 1.25 percent. What is the approximate absolute increase in one year?

Answer and explanation

Correct answer: 2.5 million

Correct answer: C, 2.5 million people, or 25 lakh. Absolute increase is found by multiplying the initial population by the growth rate in decimal form. Convert 1.25 percent to 0.0125. Then calculate 200,000,000 × 0.0125 = 2,500,000. Therefore, the population increases by approximately 2.5 million in one year. A, 1 million, is too small and would correspond to only 0.5 percent of 200 million. B, 1.5 million, also uses an incorrect rate. D, 5 million, doubles the correct increase and would represent a 2.5 percent rate. The question asks for an absolute number of people, not merely the percentage. Memory cue: percentage increase becomes an absolute increase after multiplying by the original population.

Related tags

Absolute IncreaseGrowth Rate CalculationAnnual Population ChangePopulation ArithmeticPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeography

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