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A country's population rises from 48 million to 60 million. What is the total percentage growth?

Answer and explanation

Correct answer: 25 percent

The correct answer is C: 25 percent. Begin by finding the absolute increase: 60 million − 48 million = 12 million. Next compare that increase with the initial population, not the final population. Percentage growth = (12 ÷ 48) × 100 = 25 percent. Thus, the population grew by one-fourth of its original size. Option A is incorrect because 20 percent of 48 million is 9.6 million, not the actual increase of 12 million. Option B is also too low. Option C is correct because 12 is one-quarter of 48, and one-quarter equals 25 percent. Option D is too high; 30 percent of 48 million would be 14.4 million. A common mistake is to divide the increase by 60 million, which would measure the increase against the final total rather than the original base. Memory cue: percentage growth always uses the starting population as the reference unless the question explicitly states another base.

Related tags

Percentage GrowthPopulation IncreaseInitial BaseDemographyPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeography

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