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If a country's population increases by 54 percent over eighteen years, which statement is definitely correct?

Answer and explanation

Correct answer: Final population is 154 percent of initial population

A percentage increase describes the difference between the starting population and the final population. An increase of 54 percent means that the increase is 54 parts for every 100 parts in the original population. Therefore, the final population contains the original 100 percent plus the additional 54 percent. It is consequently 154 percent of the initial population.

This conclusion does not require the increase to have been equal in every year. The population could have grown quickly in some years and slowly in others. Option A wrongly treats the total percentage divided by eighteen as an exact annual pattern; compound growth would also not be calculated in that simple way. Birth rate and migration are separate demographic facts, so options C and D cannot be inferred from the given information. Thus B is definitely correct.

Related tags

Total Percentage GrowthFinal PopulationAnnual Rate InterpretationCompound GrowthPopulation GrowthThe World Population – DistributionDensity And GrowthThe World Population Distribution Density And Growth

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