Our worldAges 13-15

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 13-15

Demographic dependency ratios

Take your time. Show your thinking.

1. In a town, there are 28 young dependants (under 15), 15 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
28 · 15 · 15 · 65 · Demographic dependency rat…
2. In a town, there are 140 young dependants (under 15), 60 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
140 · 15 · 60 · 65 · Demographic dependency rat…
3. In a town, there are 238 young dependants (under 15), 203 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
238 · 15 · 203 · 65 · Demographic dependency rat…
4. In a town, there are 68 young dependants (under 15), 28 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
68 · 15 · 28 · 65 · Demographic dependency rat…
5. In a town, there are 387 young dependants (under 15), 126 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
387 · 15 · 126 · 65 · Demographic dependency rat…
6. In a town, there are 312 young dependants (under 15), 232 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
312 · 15 · 232 · 65 · Demographic dependency rat…
7. In a town, there are 260 young dependants (under 15), 280 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
260 · 15 · 280 · 65 · Demographic dependency rat…
8. In a town, there are 41 young dependants (under 15), 19 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41 · 15 · 19 · 65 · Demographic dependency rat…
9. In a town, there are 105 young dependants (under 15), 66 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
105 · 15 · 66 · 65 · Demographic dependency rat…
10. In a town, there are 126 young dependants (under 15), 70 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 · 70 · 65 · Demographic dependency rat…
11. In a town, there are 252 young dependants (under 15), 161 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
252 · 15 · 161 · 65 · Demographic dependency rat…
12. In a town, there are 75 young dependants (under 15), 48 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
75 · 15 · 48 · 65 · Demographic dependency rat…

12 questions · Seed 49 · Age guidance, not curriculum certification

View the answer key

Worksheet StudioAnswer key · Ages 13-15

Demographic dependency ratios

Answers and reasoning. Review before teaching.

1. In a town, there are 28 young dependants (under 15), 15 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
43
Total dependants = 28 + 15 = 43. Dependency ratio = (43 ÷ 100) × 100 = 43.
2. In a town, there are 140 young dependants (under 15), 60 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
50
Total dependants = 140 + 60 = 200. Dependency ratio = (200 ÷ 400) × 100 = 50.
3. In a town, there are 238 young dependants (under 15), 203 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
63
Total dependants = 238 + 203 = 441. Dependency ratio = (441 ÷ 700) × 100 = 63.
4. In a town, there are 68 young dependants (under 15), 28 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
48
Total dependants = 68 + 28 = 96. Dependency ratio = (96 ÷ 200) × 100 = 48.
5. In a town, there are 387 young dependants (under 15), 126 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 387 + 126 = 513. Dependency ratio = (513 ÷ 900) × 100 = 57.
6. In a town, there are 312 young dependants (under 15), 232 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
68
Total dependants = 312 + 232 = 544. Dependency ratio = (544 ÷ 800) × 100 = 68.
7. In a town, there are 260 young dependants (under 15), 280 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
54
Total dependants = 260 + 280 = 540. Dependency ratio = (540 ÷ 1000) × 100 = 54.
8. In a town, there are 41 young dependants (under 15), 19 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
60
Total dependants = 41 + 19 = 60. Dependency ratio = (60 ÷ 100) × 100 = 60.
9. In a town, there are 105 young dependants (under 15), 66 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 = 105 + 66 = 171. Dependency ratio = (171 ÷ 300) × 100 = 57.
10. In a town, there are 126 young dependants (under 15), 70 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
28
Total dependants = 126 + 70 = 196. Dependency ratio = (196 ÷ 700) × 100 = 28.
11. In a town, there are 252 young dependants (under 15), 161 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
59
Total dependants = 252 + 161 = 413. Dependency ratio = (413 ÷ 700) × 100 = 59.
12. In a town, there are 75 young dependants (under 15), 48 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41
Total dependants = 75 + 48 = 123. Dependency ratio = (123 ÷ 300) × 100 = 41.

12 questions · Seed 49 · Age guidance, not curriculum certification

Worksheet StudioPractice pack · Ages 13-15

Demographic dependency ratios

Take your time. Show your thinking.

1. In a town, there are 28 young dependants (under 15), 15 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
28 · 15 · 15 · 65 · Demographic dependency rat…
2. In a town, there are 140 young dependants (under 15), 60 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
140 · 15 · 60 · 65 · Demographic dependency rat…
3. In a town, there are 238 young dependants (under 15), 203 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
238 · 15 · 203 · 65 · Demographic dependency rat…
4. In a town, there are 68 young dependants (under 15), 28 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
68 · 15 · 28 · 65 · Demographic dependency rat…
5. In a town, there are 387 young dependants (under 15), 126 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
387 · 15 · 126 · 65 · Demographic dependency rat…
6. In a town, there are 312 young dependants (under 15), 232 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
312 · 15 · 232 · 65 · Demographic dependency rat…
7. In a town, there are 260 young dependants (under 15), 280 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
260 · 15 · 280 · 65 · Demographic dependency rat…
8. In a town, there are 41 young dependants (under 15), 19 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41 · 15 · 19 · 65 · Demographic dependency rat…
9. In a town, there are 105 young dependants (under 15), 66 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
105 · 15 · 66 · 65 · Demographic dependency rat…
10. In a town, there are 126 young dependants (under 15), 70 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 · 70 · 65 · Demographic dependency rat…
11. In a town, there are 252 young dependants (under 15), 161 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
252 · 15 · 161 · 65 · Demographic dependency rat…
12. In a town, there are 75 young dependants (under 15), 48 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
75 · 15 · 48 · 65 · Demographic dependency rat…

12 questions · Seed 49 · Age guidance, not curriculum certification

Worksheet StudioAnswer key · Ages 13-15

Demographic dependency ratios

Answers and reasoning. Review before teaching.

1. In a town, there are 28 young dependants (under 15), 15 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
43
Total dependants = 28 + 15 = 43. Dependency ratio = (43 ÷ 100) × 100 = 43.
2. In a town, there are 140 young dependants (under 15), 60 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
50
Total dependants = 140 + 60 = 200. Dependency ratio = (200 ÷ 400) × 100 = 50.
3. In a town, there are 238 young dependants (under 15), 203 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
63
Total dependants = 238 + 203 = 441. Dependency ratio = (441 ÷ 700) × 100 = 63.
4. In a town, there are 68 young dependants (under 15), 28 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
48
Total dependants = 68 + 28 = 96. Dependency ratio = (96 ÷ 200) × 100 = 48.
5. In a town, there are 387 young dependants (under 15), 126 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 387 + 126 = 513. Dependency ratio = (513 ÷ 900) × 100 = 57.
6. In a town, there are 312 young dependants (under 15), 232 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
68
Total dependants = 312 + 232 = 544. Dependency ratio = (544 ÷ 800) × 100 = 68.
7. In a town, there are 260 young dependants (under 15), 280 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
54
Total dependants = 260 + 280 = 540. Dependency ratio = (540 ÷ 1000) × 100 = 54.
8. In a town, there are 41 young dependants (under 15), 19 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
60
Total dependants = 41 + 19 = 60. Dependency ratio = (60 ÷ 100) × 100 = 60.
9. In a town, there are 105 young dependants (under 15), 66 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 = 105 + 66 = 171. Dependency ratio = (171 ÷ 300) × 100 = 57.
10. In a town, there are 126 young dependants (under 15), 70 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
28
Total dependants = 126 + 70 = 196. Dependency ratio = (196 ÷ 700) × 100 = 28.
11. In a town, there are 252 young dependants (under 15), 161 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
59
Total dependants = 252 + 161 = 413. Dependency ratio = (413 ÷ 700) × 100 = 59.
12. In a town, there are 75 young dependants (under 15), 48 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41
Total dependants = 75 + 48 = 123. Dependency ratio = (123 ÷ 300) × 100 = 41.

12 questions · Seed 49 · Age guidance, not curriculum certification