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If 36 percent of a country's population is aged 0-14, 54 percent is aged 15-64, and 10 percent is aged 65 and above, what is the approximate total dependency ratio?

Answer and explanation

Correct answer: About 85

The dependency ratio compares the population usually considered dependent with the working-age population. Here the dependent groups are children aged 0–14 and older people aged 65 and above. The working-age group is aged 15–64. The formula is \(\text{dependency ratio}=\frac{0\text{–}14+65+}{15\text{–}64}\times100\). It indicates the number of dependents per 100 working-age people.

The dependent share is \(36+10=46\) percent, and the working-age share is 54 percent. Therefore, \(\frac{46}{54}\times100\approx85.2\), or about 85. Hence option C is correct. It is not 46, because 46 is only the dependent percentage, not the ratio relative to working-age people. The given age shares correctly add to 100 percent.

Related tags

Dependency RatioAge Structure CalculationYouth DependencyElderly DependencyPopulation CompositionAge StructureGeographyClass 12 Mcq

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