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If a country's total dependency ratio is 75 and the working-age share is approximately 57.1 percent, what is the approximate dependent share?

Answer and explanation

Correct answer: 42.9 percent

A total dependency ratio of 75 means that dependents equal 75 percent of the working-age population. The working-age share is approximately 57.1 percent. If the dependent share is \(D\), then \(\frac{D}{57.1}\times100=75\), so \(D=57.1\times0.75=42.825\) percent.

Rounded to one decimal place, this is about 42.8 percent, conventionally represented by the offered answer 42.9 percent. The population-balance check is also useful: \(57.1+42.9=100\) percent. Therefore, option B is the intended and mathematically matching choice. The value 75 is not the dependent share; it is the ratio relative to working-age people.

Related tags

Dependency RatioDependent ShareWorking Age PopulationPercentage ConversionAge StructurePopulation CompositionGeographyClass 12 Mcq

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