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If a region's population rises from 3 million to 3.3 million over five years, what is the percentage growth over the entire five-year period?

Answer and explanation

Correct answer: 10 percent

The correct answer is B: 10 percent over the full five-year period. First find the absolute increase: 3.3 million − 3 million = 0.3 million. Then compare this increase with the initial population: (0.3 ÷ 3) × 100 = 10 percent. Option A, 5 percent, is half of the correct percentage. Option B uses the correct initial population as the base and gives the total five-year growth. Option C incorrectly divides the final population by the initial population and reports 110 percent rather than the increase. Option D treats the number 3 million as if it were a percentage. This is cumulative growth over five years, not an annual growth rate. Memory cue: percentage increase = (final − initial) ÷ initial × 100.

Related tags

Percentage Population GrowthAbsolute IncreaseFive-Year GrowthPopulation CalculationPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeography

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