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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.

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Worksheet StudioPractice pack · Ages 13-15

Demographic dependency ratios

Take your time. Show your thinking.

1. In a town, there are 228 young dependants (under 15), 54 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
228 · 15 · 54 · 65 · Demographic dependency rat…
2. In a town, there are 320 young dependants (under 15), 300 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
320 · 15 · 300 · 65 · Demographic dependency rat…
3. In a town, there are 128 young dependants (under 15), 40 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
128 · 15 · 40 · 65 · Demographic dependency rat…
4. In a town, there are 155 young dependants (under 15), 150 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
155 · 15 · 150 · 65 · Demographic dependency rat…
5. In a town, there are 198 young dependants (under 15), 153 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
198 · 15 · 153 · 65 · Demographic dependency rat…
6. In a town, there are 81 young dependants (under 15), 42 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
81 · 15 · 42 · 65 · Demographic dependency rat…
7. In a town, there are 30 young dependants (under 15), 20 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
30 · 15 · 20 · 65 · Demographic dependency rat…
8. In a town, there are 120 young dependants (under 15), 108 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
120 · 15 · 108 · 65 · Demographic dependency rat…
9. In a town, there are 342 young dependants (under 15), 171 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
342 · 15 · 171 · 65 · Demographic dependency rat…
10. In a town, there are 62 young dependants (under 15), 16 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
62 · 15 · 16 · 65 · Demographic dependency rat…
11. In a town, there are 252 young dependants (under 15), 261 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
252 · 15 · 261 · 65 · Demographic dependency rat…
12. In a town, there are 48 young dependants (under 15), 16 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
48 · 15 · 16 · 65 · Demographic dependency rat…

12 questions · Seed 67 · 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 228 young dependants (under 15), 54 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
47
Total dependants = 228 + 54 = 282. Dependency ratio = (282 ÷ 600) × 100 = 47.
2. In a town, there are 320 young dependants (under 15), 300 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
62
Total dependants = 320 + 300 = 620. Dependency ratio = (620 ÷ 1000) × 100 = 62.
3. In a town, there are 128 young dependants (under 15), 40 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 = 128 + 40 = 168. Dependency ratio = (168 ÷ 400) × 100 = 42.
4. In a town, there are 155 young dependants (under 15), 150 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
61
Total dependants = 155 + 150 = 305. Dependency ratio = (305 ÷ 500) × 100 = 61.
5. In a town, there are 198 young dependants (under 15), 153 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
39
Total dependants = 198 + 153 = 351. Dependency ratio = (351 ÷ 900) × 100 = 39.
6. In a town, there are 81 young dependants (under 15), 42 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 = 81 + 42 = 123. Dependency ratio = (123 ÷ 300) × 100 = 41.
7. In a town, there are 30 young dependants (under 15), 20 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
50
Total dependants = 30 + 20 = 50. Dependency ratio = (50 ÷ 100) × 100 = 50.
8. In a town, there are 120 young dependants (under 15), 108 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 120 + 108 = 228. Dependency ratio = (228 ÷ 400) × 100 = 57.
9. In a town, there are 342 young dependants (under 15), 171 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 = 342 + 171 = 513. Dependency ratio = (513 ÷ 900) × 100 = 57.
10. In a town, there are 62 young dependants (under 15), 16 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
39
Total dependants = 62 + 16 = 78. Dependency ratio = (78 ÷ 200) × 100 = 39.
11. In a town, there are 252 young dependants (under 15), 261 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 = 252 + 261 = 513. Dependency ratio = (513 ÷ 900) × 100 = 57.
12. In a town, there are 48 young dependants (under 15), 16 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
32
Total dependants = 48 + 16 = 64. Dependency ratio = (64 ÷ 200) × 100 = 32.

12 questions · Seed 67 · 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 228 young dependants (under 15), 54 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
228 · 15 · 54 · 65 · Demographic dependency rat…
2. In a town, there are 320 young dependants (under 15), 300 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
320 · 15 · 300 · 65 · Demographic dependency rat…
3. In a town, there are 128 young dependants (under 15), 40 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
128 · 15 · 40 · 65 · Demographic dependency rat…
4. In a town, there are 155 young dependants (under 15), 150 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
155 · 15 · 150 · 65 · Demographic dependency rat…
5. In a town, there are 198 young dependants (under 15), 153 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
198 · 15 · 153 · 65 · Demographic dependency rat…
6. In a town, there are 81 young dependants (under 15), 42 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
81 · 15 · 42 · 65 · Demographic dependency rat…
7. In a town, there are 30 young dependants (under 15), 20 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
30 · 15 · 20 · 65 · Demographic dependency rat…
8. In a town, there are 120 young dependants (under 15), 108 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
120 · 15 · 108 · 65 · Demographic dependency rat…
9. In a town, there are 342 young dependants (under 15), 171 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
342 · 15 · 171 · 65 · Demographic dependency rat…
10. In a town, there are 62 young dependants (under 15), 16 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
62 · 15 · 16 · 65 · Demographic dependency rat…
11. In a town, there are 252 young dependants (under 15), 261 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
252 · 15 · 261 · 65 · Demographic dependency rat…
12. In a town, there are 48 young dependants (under 15), 16 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
48 · 15 · 16 · 65 · Demographic dependency rat…

12 questions · Seed 67 · 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 228 young dependants (under 15), 54 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
47
Total dependants = 228 + 54 = 282. Dependency ratio = (282 ÷ 600) × 100 = 47.
2. In a town, there are 320 young dependants (under 15), 300 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
62
Total dependants = 320 + 300 = 620. Dependency ratio = (620 ÷ 1000) × 100 = 62.
3. In a town, there are 128 young dependants (under 15), 40 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 = 128 + 40 = 168. Dependency ratio = (168 ÷ 400) × 100 = 42.
4. In a town, there are 155 young dependants (under 15), 150 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
61
Total dependants = 155 + 150 = 305. Dependency ratio = (305 ÷ 500) × 100 = 61.
5. In a town, there are 198 young dependants (under 15), 153 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
39
Total dependants = 198 + 153 = 351. Dependency ratio = (351 ÷ 900) × 100 = 39.
6. In a town, there are 81 young dependants (under 15), 42 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 = 81 + 42 = 123. Dependency ratio = (123 ÷ 300) × 100 = 41.
7. In a town, there are 30 young dependants (under 15), 20 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
50
Total dependants = 30 + 20 = 50. Dependency ratio = (50 ÷ 100) × 100 = 50.
8. In a town, there are 120 young dependants (under 15), 108 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
57
Total dependants = 120 + 108 = 228. Dependency ratio = (228 ÷ 400) × 100 = 57.
9. In a town, there are 342 young dependants (under 15), 171 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 = 342 + 171 = 513. Dependency ratio = (513 ÷ 900) × 100 = 57.
10. In a town, there are 62 young dependants (under 15), 16 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
39
Total dependants = 62 + 16 = 78. Dependency ratio = (78 ÷ 200) × 100 = 39.
11. In a town, there are 252 young dependants (under 15), 261 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 = 252 + 261 = 513. Dependency ratio = (513 ÷ 900) × 100 = 57.
12. In a town, there are 48 young dependants (under 15), 16 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
32
Total dependants = 48 + 16 = 64. Dependency ratio = (64 ÷ 200) × 100 = 32.

12 questions · Seed 67 · Age guidance, not curriculum certification