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A country has a population of 80 million and a growth rate of 1.25 percent. What is the approximate simple increase in one year?

Answer and explanation

Correct answer: 1 million

A growth rate of 1.25 percent means that 1.25 out of every 100 people is added in one year, assuming a simple one-year calculation. The population is 80 million, so we multiply it by 1.25 percent. The resulting increase is 1 million people, which is 10 lakh. Hence, choice C is correct.

Convert the percentage to a fraction: \(1.25\%=\frac{1.25}{100}=0.0125\). Then calculate \(80000000\times0.0125=1000000\). Since 1 million equals 10 lakh, the answer is 10 lakh or 1 million. Choice B, 0.8 million, would correspond to a rate of 1 percent, while choice D uses the percentage number without applying it correctly.

Related tags

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

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