WAEC Economics 2021 Paper

Concept:The dependency ratio shows how many dependent persons exist for every working-age person.Explanation:A country's population is split into dependent and working-age groups.Children and elderly people are considered dependents.Here, dependents include ages $0$–$17$ and those above $60$.The working-age group is ages $18$–$60$.Using the given age distribution, add the number of people in each dependent group.Add the number of people in the working-age group.Compare the total dependent population with the total working population.This gives the dependency ratio as dependent population : working population.After simplifying the totals, the ratio becomes $2:3$.Answer:$2:3$Option A.