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A country has a population of 120 million and gains 2.4 million people in one year. What is the annual growth rate?

Answer and explanation

Correct answer: 2 percent

The correct answer is C: 2 percent. Annual growth rate = (annual increase ÷ initial population) × 100. Both quantities are in millions, so calculate (2.4 ÷ 120) × 100 = 0.02 × 100 = 2 percent. Option A, 0.2 percent, is ten times too small and usually results from a decimal-place error. Option B, 1 percent, does not match the given ratio. Option C correctly compares the increase with the starting population. Option D, 20 percent, is ten times too large and confuses 2.4 million with a much larger share of 120 million. The 2.4 million is the absolute increase, while 2 percent is the relative rate. Memory cue: rate = increase ÷ initial population × 100.

Related tags

Annual Growth RatePercentage IncreasePopulation CalculationAbsolute GrowthPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeography

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