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If a country's child dependency is 30, elderly dependency is 20, and working-age share is approximately 66.7 percent, what is the approximate total dependent share?

Answer and explanation

Correct answer: 33.3 percent

The total dependency ratio is found by adding the child dependency ratio and the elderly dependency ratio, because both groups depend on the working-age population. Here it is \(30+20=50\). This means dependents equal half of the working-age population, not half of the total population.

Let the dependent share be \(D\). With a working-age share of about 66.7 percent, \(\frac{D}{66.7}\times100=50\). Hence \(D=66.7\times0.50\approx33.35\) percent, which rounds to 33.3 percent. Option B is therefore correct. The remaining approximately 66.7 percent is the working-age group, so the two shares also total about 100 percent.

Related tags

Total DependencyDependent ShareWorking Age PercentageRatio CalculationAge StructurePopulation CompositionGeographyClass 12 Mcq

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