Our worldAges 16-18

Demographic dependency ratios

Calculate the demographic dependency ratio from young dependants, elderly dependants and the working-age population. Review suitability for your learners before teaching.

New variation Try interactive challenge Browse templates

Age band:Ages 13-15 Ages 16-18

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 16-18

Demographic dependency ratios

Take your time. Show your thinking.

1. In a town, there are 208 young dependants (under 15), 128 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
208 · 15 · 128 · 65 · Demographic dependency rat…
2. In a town, there are 90 young dependants (under 15), 81 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
90 · 15 · 81 · 65 · Demographic dependency rat…
3. In a town, there are 430 young dependants (under 15), 80 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
430 · 15 · 80 · 65 · Demographic dependency rat…
4. In a town, there are 120 young dependants (under 15), 130 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
120 · 15 · 130 · 65 · Demographic dependency rat…
5. In a town, there are 336 young dependants (under 15), 200 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
336 · 15 · 200 · 65 · Demographic dependency rat…
6. In a town, there are 256 young dependants (under 15), 88 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
256 · 15 · 88 · 65 · Demographic dependency rat…
7. In a town, there are 300 young dependants (under 15), 210 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
300 · 15 · 210 · 65 · Demographic dependency rat…
8. In a town, there are 54 young dependants (under 15), 78 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
54 · 15 · 78 · 65 · Demographic dependency rat…
9. In a town, there are 126 young dependants (under 15), 175 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
126 · 15 · 175 · 65 · Demographic dependency rat…
10. In a town, there are 132 young dependants (under 15), 100 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
132 · 15 · 100 · 65 · Demographic dependency rat…
11. In a town, there are 26 young dependants (under 15), 18 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
26 · 15 · 18 · 65 · Demographic dependency rat…
12. In a town, there are 112 young dependants (under 15), 92 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
112 · 15 · 92 · 65 · Demographic dependency rat…

12 questions · Seed 59 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 16-18

Demographic dependency ratios

Answers and reasoning. Review before teaching.

1. In a town, there are 208 young dependants (under 15), 128 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
42
Total dependants = 208 + 128 = 336. Dependency ratio = (336 ÷ 800) × 100 = 42.
2. In a town, there are 90 young dependants (under 15), 81 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 90 + 81 = 171. Dependency ratio = (171 ÷ 300) × 100 = 57.
3. In a town, there are 430 young dependants (under 15), 80 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 430 + 80 = 510. Dependency ratio = (510 ÷ 1000) × 100 = 51.
4. In a town, there are 120 young dependants (under 15), 130 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
50
Total dependants = 120 + 130 = 250. Dependency ratio = (250 ÷ 500) × 100 = 50.
5. In a town, there are 336 young dependants (under 15), 200 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
67
Total dependants = 336 + 200 = 536. Dependency ratio = (536 ÷ 800) × 100 = 67.
6. In a town, there are 256 young dependants (under 15), 88 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
43
Total dependants = 256 + 88 = 344. Dependency ratio = (344 ÷ 800) × 100 = 43.
7. In a town, there are 300 young dependants (under 15), 210 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 300 + 210 = 510. Dependency ratio = (510 ÷ 1000) × 100 = 51.
8. In a town, there are 54 young dependants (under 15), 78 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
44
Total dependants = 54 + 78 = 132. Dependency ratio = (132 ÷ 300) × 100 = 44.
9. In a town, there are 126 young dependants (under 15), 175 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
43
Total dependants = 126 + 175 = 301. Dependency ratio = (301 ÷ 700) × 100 = 43.
10. In a town, there are 132 young dependants (under 15), 100 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
58
Total dependants = 132 + 100 = 232. Dependency ratio = (232 ÷ 400) × 100 = 58.
11. In a town, there are 26 young dependants (under 15), 18 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
44
Total dependants = 26 + 18 = 44. Dependency ratio = (44 ÷ 100) × 100 = 44.
12. In a town, there are 112 young dependants (under 15), 92 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 112 + 92 = 204. Dependency ratio = (204 ÷ 400) × 100 = 51.

12 questions · Seed 59 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 16-18

Demographic dependency ratios

Take your time. Show your thinking.

1. In a town, there are 208 young dependants (under 15), 128 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
208 · 15 · 128 · 65 · Demographic dependency rat…
2. In a town, there are 90 young dependants (under 15), 81 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
90 · 15 · 81 · 65 · Demographic dependency rat…
3. In a town, there are 430 young dependants (under 15), 80 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
430 · 15 · 80 · 65 · Demographic dependency rat…
4. In a town, there are 120 young dependants (under 15), 130 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
120 · 15 · 130 · 65 · Demographic dependency rat…
5. In a town, there are 336 young dependants (under 15), 200 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
336 · 15 · 200 · 65 · Demographic dependency rat…
6. In a town, there are 256 young dependants (under 15), 88 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
256 · 15 · 88 · 65 · Demographic dependency rat…
7. In a town, there are 300 young dependants (under 15), 210 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
300 · 15 · 210 · 65 · Demographic dependency rat…
8. In a town, there are 54 young dependants (under 15), 78 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
54 · 15 · 78 · 65 · Demographic dependency rat…
9. In a town, there are 126 young dependants (under 15), 175 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
126 · 15 · 175 · 65 · Demographic dependency rat…
10. In a town, there are 132 young dependants (under 15), 100 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
132 · 15 · 100 · 65 · Demographic dependency rat…
11. In a town, there are 26 young dependants (under 15), 18 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
26 · 15 · 18 · 65 · Demographic dependency rat…
12. In a town, there are 112 young dependants (under 15), 92 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
112 · 15 · 92 · 65 · Demographic dependency rat…

12 questions · Seed 59 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 16-18

Demographic dependency ratios

Answers and reasoning. Review before teaching.

1. In a town, there are 208 young dependants (under 15), 128 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
42
Total dependants = 208 + 128 = 336. Dependency ratio = (336 ÷ 800) × 100 = 42.
2. In a town, there are 90 young dependants (under 15), 81 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 90 + 81 = 171. Dependency ratio = (171 ÷ 300) × 100 = 57.
3. In a town, there are 430 young dependants (under 15), 80 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 430 + 80 = 510. Dependency ratio = (510 ÷ 1000) × 100 = 51.
4. In a town, there are 120 young dependants (under 15), 130 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
50
Total dependants = 120 + 130 = 250. Dependency ratio = (250 ÷ 500) × 100 = 50.
5. In a town, there are 336 young dependants (under 15), 200 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
67
Total dependants = 336 + 200 = 536. Dependency ratio = (536 ÷ 800) × 100 = 67.
6. In a town, there are 256 young dependants (under 15), 88 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
43
Total dependants = 256 + 88 = 344. Dependency ratio = (344 ÷ 800) × 100 = 43.
7. In a town, there are 300 young dependants (under 15), 210 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 300 + 210 = 510. Dependency ratio = (510 ÷ 1000) × 100 = 51.
8. In a town, there are 54 young dependants (under 15), 78 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
44
Total dependants = 54 + 78 = 132. Dependency ratio = (132 ÷ 300) × 100 = 44.
9. In a town, there are 126 young dependants (under 15), 175 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
43
Total dependants = 126 + 175 = 301. Dependency ratio = (301 ÷ 700) × 100 = 43.
10. In a town, there are 132 young dependants (under 15), 100 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
58
Total dependants = 132 + 100 = 232. Dependency ratio = (232 ÷ 400) × 100 = 58.
11. In a town, there are 26 young dependants (under 15), 18 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
44
Total dependants = 26 + 18 = 44. Dependency ratio = (44 ÷ 100) × 100 = 44.
12. In a town, there are 112 young dependants (under 15), 92 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 112 + 92 = 204. Dependency ratio = (204 ÷ 400) × 100 = 51.

12 questions · Seed 59 · Age guidance, not curriculum certification