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In a country, the 15-64 age group rises from 62 percent to 69 percent. If total population remains unchanged, what does this mean?

Answer and explanation

Correct answer: The absolute number of working-age people has increased

When total population remains unchanged, a change in an age group’s percentage directly changes its absolute number. Suppose the unchanged total population is \(N\). Initially, working-age people number \(0.62N\); later, they number \(0.69N\). Since \(0.69N>0.62N\), their actual number has increased.

The remaining population share falls from 38% to 31%, but this does not by itself identify whether children or elderly people increased. Nor can we conclude that total dependency must rise. The key information is the fixed total and the higher working-age share. Therefore, the absolute number of working-age people increased, so option A is correct.

Related tags

Working Age ShareAbsolute PopulationAge CompositionDependencyAge StructurePopulation CompositionGeographyClass 12 Mcq

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