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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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Age band:Ages 13-15 Ages 16-18

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Worksheet StudioPractice pack · Ages 16-18

Demographic dependency ratios

Take your time. Show your thinking.

1. In a town, there are 205 young dependants (under 15), 90 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
205 · 15 · 90 · 65 · Demographic dependency rat…
2. In a town, there are 320 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).
320 · 15 · 80 · 65 · Demographic dependency rat…
3. In a town, there are 104 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).
104 · 15 · 40 · 65 · Demographic dependency rat…
4. In a town, there are 24 young dependants (under 15), 21 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 · 21 · 65 · Demographic dependency rat…
5. In a town, there are 260 young dependants (under 15), 150 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 · 150 · 65 · Demographic dependency rat…
6. In a town, there are 140 young dependants (under 15), 64 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 · 64 · 65 · Demographic dependency rat…
7. In a town, there are 216 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).
216 · 15 · 200 · 65 · Demographic dependency rat…
8. In a town, there are 405 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).
405 · 15 · 207 · 65 · Demographic dependency rat…
9. In a town, there are 216 young dependants (under 15), 66 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
216 · 15 · 66 · 65 · Demographic dependency rat…
10. In a town, there are 108 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).
108 · 15 · 81 · 65 · Demographic dependency rat…
11. 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…
12. In a town, there are 63 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).
63 · 15 · 78 · 65 · Demographic dependency rat…

12 questions · Seed 46 · 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 205 young dependants (under 15), 90 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
59
Total dependants = 205 + 90 = 295. Dependency ratio = (295 ÷ 500) × 100 = 59.
2. In a town, there are 320 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).
40
Total dependants = 320 + 80 = 400. Dependency ratio = (400 ÷ 1000) × 100 = 40.
3. In a town, there are 104 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).
36
Total dependants = 104 + 40 = 144. Dependency ratio = (144 ÷ 400) × 100 = 36.
4. In a town, there are 24 young dependants (under 15), 21 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
45
Total dependants = 24 + 21 = 45. Dependency ratio = (45 ÷ 100) × 100 = 45.
5. In a town, there are 260 young dependants (under 15), 150 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41
Total dependants = 260 + 150 = 410. Dependency ratio = (410 ÷ 1000) × 100 = 41.
6. In a town, there are 140 young dependants (under 15), 64 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 = 140 + 64 = 204. Dependency ratio = (204 ÷ 400) × 100 = 51.
7. In a town, there are 216 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).
52
Total dependants = 216 + 200 = 416. Dependency ratio = (416 ÷ 800) × 100 = 52.
8. In a town, there are 405 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).
68
Total dependants = 405 + 207 = 612. Dependency ratio = (612 ÷ 900) × 100 = 68.
9. In a town, there are 216 young dependants (under 15), 66 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 = 216 + 66 = 282. Dependency ratio = (282 ÷ 600) × 100 = 47.
10. In a town, there are 108 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).
63
Total dependants = 108 + 81 = 189. Dependency ratio = (189 ÷ 300) × 100 = 63.
11. 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.
12. In a town, there are 63 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).
47
Total dependants = 63 + 78 = 141. Dependency ratio = (141 ÷ 300) × 100 = 47.

12 questions · Seed 46 · 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 205 young dependants (under 15), 90 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
205 · 15 · 90 · 65 · Demographic dependency rat…
2. In a town, there are 320 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).
320 · 15 · 80 · 65 · Demographic dependency rat…
3. In a town, there are 104 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).
104 · 15 · 40 · 65 · Demographic dependency rat…
4. In a town, there are 24 young dependants (under 15), 21 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 · 21 · 65 · Demographic dependency rat…
5. In a town, there are 260 young dependants (under 15), 150 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 · 150 · 65 · Demographic dependency rat…
6. In a town, there are 140 young dependants (under 15), 64 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 · 64 · 65 · Demographic dependency rat…
7. In a town, there are 216 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).
216 · 15 · 200 · 65 · Demographic dependency rat…
8. In a town, there are 405 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).
405 · 15 · 207 · 65 · Demographic dependency rat…
9. In a town, there are 216 young dependants (under 15), 66 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
216 · 15 · 66 · 65 · Demographic dependency rat…
10. In a town, there are 108 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).
108 · 15 · 81 · 65 · Demographic dependency rat…
11. 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…
12. In a town, there are 63 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).
63 · 15 · 78 · 65 · Demographic dependency rat…

12 questions · Seed 46 · 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 205 young dependants (under 15), 90 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
59
Total dependants = 205 + 90 = 295. Dependency ratio = (295 ÷ 500) × 100 = 59.
2. In a town, there are 320 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).
40
Total dependants = 320 + 80 = 400. Dependency ratio = (400 ÷ 1000) × 100 = 40.
3. In a town, there are 104 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).
36
Total dependants = 104 + 40 = 144. Dependency ratio = (144 ÷ 400) × 100 = 36.
4. In a town, there are 24 young dependants (under 15), 21 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
45
Total dependants = 24 + 21 = 45. Dependency ratio = (45 ÷ 100) × 100 = 45.
5. In a town, there are 260 young dependants (under 15), 150 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41
Total dependants = 260 + 150 = 410. Dependency ratio = (410 ÷ 1000) × 100 = 41.
6. In a town, there are 140 young dependants (under 15), 64 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 = 140 + 64 = 204. Dependency ratio = (204 ÷ 400) × 100 = 51.
7. In a town, there are 216 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).
52
Total dependants = 216 + 200 = 416. Dependency ratio = (416 ÷ 800) × 100 = 52.
8. In a town, there are 405 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).
68
Total dependants = 405 + 207 = 612. Dependency ratio = (612 ÷ 900) × 100 = 68.
9. In a town, there are 216 young dependants (under 15), 66 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 = 216 + 66 = 282. Dependency ratio = (282 ÷ 600) × 100 = 47.
10. In a town, there are 108 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).
63
Total dependants = 108 + 81 = 189. Dependency ratio = (189 ÷ 300) × 100 = 63.
11. 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.
12. In a town, there are 63 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).
47
Total dependants = 63 + 78 = 141. Dependency ratio = (141 ÷ 300) × 100 = 47.

12 questions · Seed 46 · Age guidance, not curriculum certification