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If dependents form 40 percent of a country's population and the total dependency ratio is about 66.7, what is the working-age share?

Answer and explanation

Correct answer: 60 percent

If dependents form 40 percent of the whole population, the working-age share is the remaining part: \(100-40=60\) percent. The stated dependency ratio provides a direct check. Dividing the dependent share by the working-age share gives \(\frac{40}{60}\times100=66.666\ldots\), which rounds to about 66.7.

Therefore, the working-age share is 60 percent, and option C is correct. The value 66.7 is the dependency ratio, not the working-age percentage, so option D confuses a ratio with a population share. This question also illustrates why the two measures should be kept separate: a share describes part of the total population, while a dependency ratio compares dependents specifically with working-age people.

Related tags

Working Age ShareDependent ShareDependency RatioPercentage CheckAge StructurePopulation CompositionGeographyClass 12 Mcq

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