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If children form 32 percent, elderly people 8 percent, and working-age people 60 percent, what are the approximate total dependency ratio and child dependency ratio respectively?

Answer and explanation

Correct answer: 67 and 53

The total dependency ratio uses all dependents, so the child and elderly shares must first be added. The child dependency ratio uses only the child share. In both cases, the denominator is the working-age share of 60 percent. Keeping this common denominator is essential; using 40 or 32 directly would confuse population shares with ratios.

Total dependents = \(32+8=40\) percent, so total dependency = \(\frac{40}{60}\times100\approx66.7\), or 67. Child dependency = \(\frac{32}{60}\times100\approx53.3\), or 53. Therefore, option A is correct. The reversed pair in option C assigns each calculated ratio to the wrong group.

Related tags

Total DependencyChild DependencyWorking Age PopulationRatio CalculationAge StructurePopulation CompositionGeographyClass 12 Mcq

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