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If people aged 15 to 59 form 72 percent and the elderly share is 7 percent, what percentage belongs to the child population?

Answer and explanation

Correct answer: 21 percent

The three age groups together make up the entire population, or 100 percent. If the working-age and elderly shares are known, their sum can be subtracted from 100 percent to find the child share. This is a part-whole calculation, so the percentages must refer to the same total population.

The working-age group is 72 percent and the elderly group is 7 percent. Together they account for \(72+7=79\) percent. The remaining share is \(100-79=21\) percent, which belongs to children. Therefore, option C, 21 percent, is correct. The stated age boundaries do not alter the arithmetic because the question already supplies the complete group shares.

Related tags

Child ShareWorking Age PopulationPercentage CalculationAge StructurePopulation CompositionGeographyClass 12 McqRdgdfgdfg

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