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A country has a population of 120 million. If its total growth rate is 0.75 percent, what is the approximate simple increase in one year?

Answer and explanation

Correct answer: 900000

A percentage growth rate is applied to the starting population. For a simple one-year increase, multiply the population by the rate written as a decimal. Since 0.75 percent means 0.75 divided by 100, its decimal form is 0.0075. The result is an approximate increase because the question asks for a simple one-year calculation rather than compounding.

The population is 120 million, or 120,000,000. The increase is \(120000000\times0.0075=900000\) people. Thus approximately 900,000 people are added in one year, so option C is correct. The answer is not 9,000 because the rate is applied to 120 million, and not 12 million because 0.75 percent is less than one percent.

Related tags

Growth Rate CalculationLarge Population BaseAbsolute IncreaseAnnual GrowthPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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