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In a country, ages 0 to 14 form 24 percent, ages 15 to 59 form 61 percent, and ages 60 and above form 15 percent. If in the next decade the child group becomes 18 percent and the elderly group 22 percent, what will be the new working-age share?

Answer and explanation

Correct answer: 60 percent

The three stated age groups together make up the whole population. In the new situation, children account for 18% and elderly people account for 22%. Their combined share is therefore 40%. The working-age group must occupy the remaining part of the population, assuming the same mutually exclusive categories are used.

The new working-age share is \\(100-(18+22)=100-40=60\\%\\). Therefore, option A is correct. The original working-age share of 61% is not used to calculate the new value, because the question gives the new child and elderly shares directly. A useful check is that the new percentages must add to 100: 18 + 60 + 22 = 100.

Related tags

Working Age ShareAge Structure ChangeDependent PopulationPercentage CalculationAge StructurePopulation CompositionGeographyClass 12 Mcq

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