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If a country's total population remains constant while the population aged 65 and above rises from 12 percent to 19 percent, which conclusion is definitely correct?

Answer and explanation

Correct answer: The absolute number of elderly people has increased

A percentage is a share of the total population. Here the total population stays constant, so an increase in the elderly share from 12 percent to 19 percent means that more actual people are in the 65-and-above group. For example, if the total were 1,000,000, the elderly population would rise from 120,000 to 190,000. The exact total is not needed; because it is fixed and positive, the larger share necessarily represents a larger absolute number.

Option A is therefore definitely correct. The information does not prove that birth rate doubled, that the working-age population increased, or that children disappeared. In fact, other age groups may have declined or changed in different ways. The certain conclusion concerns only the elderly group: its numerical size increased when its percentage share rose while the total remained unchanged.

Related tags

Elderly ShareAbsolute PopulationPopulation AgeingAge CompositionAge StructurePopulation CompositionGeographyClass 12 Mcq

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