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If people aged 60 and above form 24% of a country's population and its elderly dependency ratio is 40 per 100 working-age people, approximately what share of the population is of working age?

Answer and explanation

Correct answer: 60%

The elderly dependency ratio is (elderly population ÷ working-age population) × 100. Let the working-age share be W. Then (24 ÷ W) × 100 = 40, so W = 24 × 100 ÷ 40 = 60%. The figures are consistent with mutually exclusive age groups: the remaining 16% can be below working age. Therefore, option A is correct.

Related tags

Dependency RatioPercentage CalculationAge StructurePopulation CompositionGeographyClass 12 Mcq

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