Bar Graphs

Bar Graphs

TGM Original Questions

The following bar graph shows the population age structure of Country A and Country B.

  1. Find the total population of Country A and Country B, respectively.
  2. Express the population aged from \(20\) to \(59\) (working population)* as a percentage of the total population of Country A and Country B, respectively, correcting your answers to \(3\) significant figures.
  3. Express the population aged \(60\) and above (aging population)* as a percentage of the total population of Country A and Country B, respectively, correcting your answers to \(3\) significant figures.
  4. Based on your answers in (ii) and (iii), state which country has a higher proportion of the working population, and which country has a more serious population aging.

Video Solution:

Video Solution

Video solution locked

A free account saves your progress; this video needs a course plan.

Solution:

Solution locked

680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs a course plan.

Answer:(i) Country A: \(4.45\) million, Country B: \(4.13\) million (ii) Country A: \(54.2\%\), Country B: \(49.4\%\) (iii) Country A: \(19.3\%\), Country B: \(37.3\%\) (iv) Country A has the higher working-population proportion; Country B has more serious population ageing

Need help? Join our E-Maths tuition for O-Level success.

Learn more