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If child dependency falls from 70 to 40 while elderly dependency rises from 10 to 25, how does total dependency change?

Answer and explanation

Correct answer: From 80 to 65

Total dependency is obtained by adding child dependency and elderly dependency, because both groups are compared with the same working-age base. Initially, total dependency = 70 + 10 = 80. After the change, it equals 40 + 25 = 65. Thus, total dependency falls from 80 to 65, a decline of 15 points. The reduction of 30 points in child dependency is larger than the 15-point increase in elderly dependency, so the net result is a decrease. Option C reports only the new child value, while options A and D use incorrect totals. Therefore, option B is correct.

Related tags

Dependency TransitionChild DependencyElderly DependencyAge StructurePopulation CompositionGeographyClass 12 Mcq

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