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If elderly people form 22 percent of a country's population and the working-age share is 58 percent, what is the child share and approximate total dependency ratio?

Answer and explanation

Correct answer: 20 percent and about 72

The three age groups together make 100 percent of the population. The child share is therefore \(100 - 22 - 58 = 20\) percent. Children and elderly people are dependents in this simplified calculation, so the total dependent share is \(20 + 22 = 42\) percent. The dependency ratio compares dependents with the working-age population, not with the whole population: \(42 \div 58 \times 100 \approx 72.4\). It is therefore about 72.

Option A is correct. The value 42 is the dependent share, not the dependency ratio, so option B confuses two related measures. Option C uses the wrong child share, and option D simply repeats the given age shares. The calculation assumes the listed groups cover the whole population and uses the usual ratio of dependents to working-age people.

Related tags

Multi-Step DependencyChild ShareTotal DependencyAge CalculationAge StructurePopulation CompositionGeographyClass 12 Mcq

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