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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 90 young dependants (under 15), 44 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
90 · 15 · 44 · 65 · Demographic dependency rat…
2. In a town, there are 150 young dependants (under 15), 114 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
150 · 15 · 114 · 65 · Demographic dependency rat…
3. In a town, there are 264 young dependants (under 15), 64 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
264 · 15 · 64 · 65 · Demographic dependency rat…
4. In a town, there are 175 young dependants (under 15), 140 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
175 · 15 · 140 · 65 · Demographic dependency rat…
5. In a town, there are 210 young dependants (under 15), 196 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
210 · 15 · 196 · 65 · Demographic dependency rat…
6. In a town, there are 210 young dependants (under 15), 65 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
210 · 15 · 65 · 65 · Demographic dependency rat…
7. In a town, there are 220 young dependants (under 15), 230 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
220 · 15 · 230 · 65 · Demographic dependency rat…
8. In a town, there are 54 young dependants (under 15), 72 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 · 72 · 65 · Demographic dependency rat…
9. In a town, there are 333 young dependants (under 15), 135 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
333 · 15 · 135 · 65 · Demographic dependency rat…
10. In a town, there are 110 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).
110 · 15 · 150 · 65 · Demographic dependency rat…
11. In a town, there are 31 young dependants (under 15), 13 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
31 · 15 · 13 · 65 · Demographic dependency rat…
12. In a town, there are 104 young dependants (under 15), 84 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 · 84 · 65 · Demographic dependency rat…

12 questions · Seed 58 · 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 90 young dependants (under 15), 44 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
67
Total dependants = 90 + 44 = 134. Dependency ratio = (134 ÷ 200) × 100 = 67.
2. In a town, there are 150 young dependants (under 15), 114 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
44
Total dependants = 150 + 114 = 264. Dependency ratio = (264 ÷ 600) × 100 = 44.
3. In a town, there are 264 young dependants (under 15), 64 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41
Total dependants = 264 + 64 = 328. Dependency ratio = (328 ÷ 800) × 100 = 41.
4. In a town, there are 175 young dependants (under 15), 140 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
63
Total dependants = 175 + 140 = 315. Dependency ratio = (315 ÷ 500) × 100 = 63.
5. In a town, there are 210 young dependants (under 15), 196 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
58
Total dependants = 210 + 196 = 406. Dependency ratio = (406 ÷ 700) × 100 = 58.
6. In a town, there are 210 young dependants (under 15), 65 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
55
Total dependants = 210 + 65 = 275. Dependency ratio = (275 ÷ 500) × 100 = 55.
7. In a town, there are 220 young dependants (under 15), 230 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
45
Total dependants = 220 + 230 = 450. Dependency ratio = (450 ÷ 1000) × 100 = 45.
8. In a town, there are 54 young dependants (under 15), 72 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
42
Total dependants = 54 + 72 = 126. Dependency ratio = (126 ÷ 300) × 100 = 42.
9. In a town, there are 333 young dependants (under 15), 135 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
52
Total dependants = 333 + 135 = 468. Dependency ratio = (468 ÷ 900) × 100 = 52.
10. In a town, there are 110 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).
52
Total dependants = 110 + 150 = 260. Dependency ratio = (260 ÷ 500) × 100 = 52.
11. In a town, there are 31 young dependants (under 15), 13 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 = 31 + 13 = 44. Dependency ratio = (44 ÷ 100) × 100 = 44.
12. In a town, there are 104 young dependants (under 15), 84 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
47
Total dependants = 104 + 84 = 188. Dependency ratio = (188 ÷ 400) × 100 = 47.

12 questions · Seed 58 · 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 90 young dependants (under 15), 44 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
90 · 15 · 44 · 65 · Demographic dependency rat…
2. In a town, there are 150 young dependants (under 15), 114 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
150 · 15 · 114 · 65 · Demographic dependency rat…
3. In a town, there are 264 young dependants (under 15), 64 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
264 · 15 · 64 · 65 · Demographic dependency rat…
4. In a town, there are 175 young dependants (under 15), 140 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
175 · 15 · 140 · 65 · Demographic dependency rat…
5. In a town, there are 210 young dependants (under 15), 196 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
210 · 15 · 196 · 65 · Demographic dependency rat…
6. In a town, there are 210 young dependants (under 15), 65 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
210 · 15 · 65 · 65 · Demographic dependency rat…
7. In a town, there are 220 young dependants (under 15), 230 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
220 · 15 · 230 · 65 · Demographic dependency rat…
8. In a town, there are 54 young dependants (under 15), 72 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 · 72 · 65 · Demographic dependency rat…
9. In a town, there are 333 young dependants (under 15), 135 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
333 · 15 · 135 · 65 · Demographic dependency rat…
10. In a town, there are 110 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).
110 · 15 · 150 · 65 · Demographic dependency rat…
11. In a town, there are 31 young dependants (under 15), 13 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
31 · 15 · 13 · 65 · Demographic dependency rat…
12. In a town, there are 104 young dependants (under 15), 84 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 · 84 · 65 · Demographic dependency rat…

12 questions · Seed 58 · 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 90 young dependants (under 15), 44 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
67
Total dependants = 90 + 44 = 134. Dependency ratio = (134 ÷ 200) × 100 = 67.
2. In a town, there are 150 young dependants (under 15), 114 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
44
Total dependants = 150 + 114 = 264. Dependency ratio = (264 ÷ 600) × 100 = 44.
3. In a town, there are 264 young dependants (under 15), 64 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
41
Total dependants = 264 + 64 = 328. Dependency ratio = (328 ÷ 800) × 100 = 41.
4. In a town, there are 175 young dependants (under 15), 140 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
63
Total dependants = 175 + 140 = 315. Dependency ratio = (315 ÷ 500) × 100 = 63.
5. In a town, there are 210 young dependants (under 15), 196 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
58
Total dependants = 210 + 196 = 406. Dependency ratio = (406 ÷ 700) × 100 = 58.
6. In a town, there are 210 young dependants (under 15), 65 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
55
Total dependants = 210 + 65 = 275. Dependency ratio = (275 ÷ 500) × 100 = 55.
7. In a town, there are 220 young dependants (under 15), 230 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
45
Total dependants = 220 + 230 = 450. Dependency ratio = (450 ÷ 1000) × 100 = 45.
8. In a town, there are 54 young dependants (under 15), 72 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
42
Total dependants = 54 + 72 = 126. Dependency ratio = (126 ÷ 300) × 100 = 42.
9. In a town, there are 333 young dependants (under 15), 135 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
52
Total dependants = 333 + 135 = 468. Dependency ratio = (468 ÷ 900) × 100 = 52.
10. In a town, there are 110 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).
52
Total dependants = 110 + 150 = 260. Dependency ratio = (260 ÷ 500) × 100 = 52.
11. In a town, there are 31 young dependants (under 15), 13 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 = 31 + 13 = 44. Dependency ratio = (44 ÷ 100) × 100 = 44.
12. In a town, there are 104 young dependants (under 15), 84 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
47
Total dependants = 104 + 84 = 188. Dependency ratio = (188 ÷ 400) × 100 = 47.

12 questions · Seed 58 · Age guidance, not curriculum certification