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If 18 percent of a country's population is aged 0-14, 67 percent is aged 15-64, and 15 percent is aged 65 and above, what is the approximate old-age dependency ratio?

Answer and explanation

Correct answer: About 22

The old-age dependency ratio measures the number of elderly people in relation to the working-age population. It does not include children. Here, people aged 65 and above make up 15% of the population, and those aged 15–64 make up 67%. The remaining child percentage is irrelevant to this particular ratio.

Using the standard formula, old-age dependency ratio = \(15/67\times100\). This gives approximately 22.39, which rounds to about 22 elderly persons per 100 working-age persons. Therefore, option B is correct. Option C, 15, is only the elderly share of the total population and is not the ratio because the ratio must use the working-age group as its denominator.

Related tags

Old Age Dependency RatioAge Structure CalculationElderly PopulationWorking Age GroupAge StructurePopulation CompositionGeographyClass 12 Mcq

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