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 27 young dependants (under 15), 25 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
27 · 15 · 25 · 65 · Demographic dependency rat…
2. In a town, there are 112 young dependants (under 15), 56 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 · 56 · 65 · Demographic dependency rat…
3. In a town, there are 216 young dependants (under 15), 168 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
216 · 15 · 168 · 65 · Demographic dependency rat…
4. In a town, there are 64 young dependants (under 15), 50 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
64 · 15 · 50 · 65 · Demographic dependency rat…
5. In a town, there are 133 young dependants (under 15), 154 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
133 · 15 · 154 · 65 · Demographic dependency rat…
6. In a town, there are 258 young dependants (under 15), 144 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
258 · 15 · 144 · 65 · Demographic dependency rat…
7. In a town, there are 24 young dependants (under 15), 23 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
24 · 15 · 23 · 65 · Demographic dependency rat…
8. In a town, there are 76 young dependants (under 15), 42 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
76 · 15 · 42 · 65 · Demographic dependency rat…
9. In a town, there are 180 young dependants (under 15), 81 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
180 · 15 · 81 · 65 · Demographic dependency rat…
10. In a town, there are 21 young dependants (under 15), 16 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
21 · 15 · 16 · 65 · Demographic dependency rat…
11. In a town, there are 140 young dependants (under 15), 145 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
140 · 15 · 145 · 65 · Demographic dependency rat…
12. In a town, there are 279 young dependants (under 15), 207 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
279 · 15 · 207 · 65 · Demographic dependency rat…

12 questions · Seed 56 · 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 27 young dependants (under 15), 25 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
52
Total dependants = 27 + 25 = 52. Dependency ratio = (52 ÷ 100) × 100 = 52.
2. In a town, there are 112 young dependants (under 15), 56 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
42
Total dependants = 112 + 56 = 168. Dependency ratio = (168 ÷ 400) × 100 = 42.
3. In a town, there are 216 young dependants (under 15), 168 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
48
Total dependants = 216 + 168 = 384. Dependency ratio = (384 ÷ 800) × 100 = 48.
4. In a town, there are 64 young dependants (under 15), 50 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 64 + 50 = 114. Dependency ratio = (114 ÷ 200) × 100 = 57.
5. In a town, there are 133 young dependants (under 15), 154 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41
Total dependants = 133 + 154 = 287. Dependency ratio = (287 ÷ 700) × 100 = 41.
6. In a town, there are 258 young dependants (under 15), 144 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
67
Total dependants = 258 + 144 = 402. Dependency ratio = (402 ÷ 600) × 100 = 67.
7. In a town, there are 24 young dependants (under 15), 23 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
47
Total dependants = 24 + 23 = 47. Dependency ratio = (47 ÷ 100) × 100 = 47.
8. In a town, there are 76 young dependants (under 15), 42 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
59
Total dependants = 76 + 42 = 118. Dependency ratio = (118 ÷ 200) × 100 = 59.
9. In a town, there are 180 young dependants (under 15), 81 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
29
Total dependants = 180 + 81 = 261. Dependency ratio = (261 ÷ 900) × 100 = 29.
10. In a town, there are 21 young dependants (under 15), 16 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 21 + 16 = 37. Dependency ratio = (37 ÷ 100) × 100 = 37.
11. In a town, there are 140 young dependants (under 15), 145 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 140 + 145 = 285. Dependency ratio = (285 ÷ 500) × 100 = 57.
12. In a town, there are 279 young dependants (under 15), 207 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
54
Total dependants = 279 + 207 = 486. Dependency ratio = (486 ÷ 900) × 100 = 54.

12 questions · Seed 56 · 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 27 young dependants (under 15), 25 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
27 · 15 · 25 · 65 · Demographic dependency rat…
2. In a town, there are 112 young dependants (under 15), 56 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 · 56 · 65 · Demographic dependency rat…
3. In a town, there are 216 young dependants (under 15), 168 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
216 · 15 · 168 · 65 · Demographic dependency rat…
4. In a town, there are 64 young dependants (under 15), 50 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
64 · 15 · 50 · 65 · Demographic dependency rat…
5. In a town, there are 133 young dependants (under 15), 154 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
133 · 15 · 154 · 65 · Demographic dependency rat…
6. In a town, there are 258 young dependants (under 15), 144 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
258 · 15 · 144 · 65 · Demographic dependency rat…
7. In a town, there are 24 young dependants (under 15), 23 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
24 · 15 · 23 · 65 · Demographic dependency rat…
8. In a town, there are 76 young dependants (under 15), 42 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
76 · 15 · 42 · 65 · Demographic dependency rat…
9. In a town, there are 180 young dependants (under 15), 81 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
180 · 15 · 81 · 65 · Demographic dependency rat…
10. In a town, there are 21 young dependants (under 15), 16 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
21 · 15 · 16 · 65 · Demographic dependency rat…
11. In a town, there are 140 young dependants (under 15), 145 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
140 · 15 · 145 · 65 · Demographic dependency rat…
12. In a town, there are 279 young dependants (under 15), 207 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
279 · 15 · 207 · 65 · Demographic dependency rat…

12 questions · Seed 56 · 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 27 young dependants (under 15), 25 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
52
Total dependants = 27 + 25 = 52. Dependency ratio = (52 ÷ 100) × 100 = 52.
2. In a town, there are 112 young dependants (under 15), 56 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
42
Total dependants = 112 + 56 = 168. Dependency ratio = (168 ÷ 400) × 100 = 42.
3. In a town, there are 216 young dependants (under 15), 168 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
48
Total dependants = 216 + 168 = 384. Dependency ratio = (384 ÷ 800) × 100 = 48.
4. In a town, there are 64 young dependants (under 15), 50 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 64 + 50 = 114. Dependency ratio = (114 ÷ 200) × 100 = 57.
5. In a town, there are 133 young dependants (under 15), 154 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41
Total dependants = 133 + 154 = 287. Dependency ratio = (287 ÷ 700) × 100 = 41.
6. In a town, there are 258 young dependants (under 15), 144 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
67
Total dependants = 258 + 144 = 402. Dependency ratio = (402 ÷ 600) × 100 = 67.
7. In a town, there are 24 young dependants (under 15), 23 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
47
Total dependants = 24 + 23 = 47. Dependency ratio = (47 ÷ 100) × 100 = 47.
8. In a town, there are 76 young dependants (under 15), 42 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
59
Total dependants = 76 + 42 = 118. Dependency ratio = (118 ÷ 200) × 100 = 59.
9. In a town, there are 180 young dependants (under 15), 81 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
29
Total dependants = 180 + 81 = 261. Dependency ratio = (261 ÷ 900) × 100 = 29.
10. In a town, there are 21 young dependants (under 15), 16 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 21 + 16 = 37. Dependency ratio = (37 ÷ 100) × 100 = 37.
11. In a town, there are 140 young dependants (under 15), 145 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 140 + 145 = 285. Dependency ratio = (285 ÷ 500) × 100 = 57.
12. In a town, there are 279 young dependants (under 15), 207 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
54
Total dependants = 279 + 207 = 486. Dependency ratio = (486 ÷ 900) × 100 = 54.

12 questions · Seed 56 · Age guidance, not curriculum certification