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A region begins with a population of 500000. What will the population be after a 10 percent increase?

Answer and explanation

Correct answer: 550000

A 10 percent increase means that one-tenth of the initial population is added to the initial population. The new total is therefore 110 percent of the starting value, or the starting value multiplied by \(1.10\). It is important not to confuse 10 percent with adding 10,000 or with doubling the population.

Ten percent of 500,000 is \(500000\times0.10=50000\). Adding this increase gives \(500000+50000=550000\), which is 5.5 lakh. Therefore, option B is correct. The value 505,000 represents only a 1 percent increase, while 600,000 represents a 20 percent increase over 500,000. The calculation uses the original population as the base.

Related tags

New Population CalculationPercentage IncreasePopulation GrowthPopulation ArithmeticThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And GrowthGeography

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