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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 272 young dependants (under 15), 224 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
272 · 15 · 224 · 65 · Demographic dependency rat…
2. In a town, there are 156 young dependants (under 15), 76 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
156 · 15 · 76 · 65 · Demographic dependency rat…
3. In a town, there are 250 young dependants (under 15), 120 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
250 · 15 · 120 · 65 · Demographic dependency rat…
4. In a town, there are 21 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).
21 · 15 · 23 · 65 · Demographic dependency rat…
5. In a town, there are 38 young dependants (under 15), 54 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
38 · 15 · 54 · 65 · Demographic dependency rat…
6. In a town, there are 40 young dependants (under 15), 34 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
40 · 15 · 34 · 65 · Demographic dependency rat…
7. In a town, there are 288 young dependants (under 15), 176 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
288 · 15 · 176 · 65 · Demographic dependency rat…
8. In a town, there are 29 young dependants (under 15), 26 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
29 · 15 · 26 · 65 · Demographic dependency rat…
9. In a town, there are 216 young dependants (under 15), 90 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 · 90 · 65 · Demographic dependency rat…
10. In a town, there are 450 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).
450 · 15 · 280 · 65 · Demographic dependency rat…
11. In a town, there are 133 young dependants (under 15), 63 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 · 63 · 65 · Demographic dependency rat…
12. In a town, there are 190 young dependants (under 15), 130 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
190 · 15 · 130 · 65 · Demographic dependency rat…

12 questions · Seed 55 · 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 272 young dependants (under 15), 224 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
62
Total dependants = 272 + 224 = 496. Dependency ratio = (496 ÷ 800) × 100 = 62.
2. In a town, there are 156 young dependants (under 15), 76 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
58
Total dependants = 156 + 76 = 232. Dependency ratio = (232 ÷ 400) × 100 = 58.
3. In a town, there are 250 young dependants (under 15), 120 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 250 + 120 = 370. Dependency ratio = (370 ÷ 1000) × 100 = 37.
4. In a town, there are 21 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).
44
Total dependants = 21 + 23 = 44. Dependency ratio = (44 ÷ 100) × 100 = 44.
5. In a town, there are 38 young dependants (under 15), 54 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
46
Total dependants = 38 + 54 = 92. Dependency ratio = (92 ÷ 200) × 100 = 46.
6. In a town, there are 40 young dependants (under 15), 34 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 40 + 34 = 74. Dependency ratio = (74 ÷ 200) × 100 = 37.
7. In a town, there are 288 young dependants (under 15), 176 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
58
Total dependants = 288 + 176 = 464. Dependency ratio = (464 ÷ 800) × 100 = 58.
8. In a town, there are 29 young dependants (under 15), 26 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
55
Total dependants = 29 + 26 = 55. Dependency ratio = (55 ÷ 100) × 100 = 55.
9. In a town, there are 216 young dependants (under 15), 90 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 216 + 90 = 306. Dependency ratio = (306 ÷ 600) × 100 = 51.
10. In a town, there are 450 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).
73
Total dependants = 450 + 280 = 730. Dependency ratio = (730 ÷ 1000) × 100 = 73.
11. In a town, there are 133 young dependants (under 15), 63 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 = 133 + 63 = 196. Dependency ratio = (196 ÷ 700) × 100 = 28.
12. In a town, there are 190 young dependants (under 15), 130 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
32
Total dependants = 190 + 130 = 320. Dependency ratio = (320 ÷ 1000) × 100 = 32.

12 questions · Seed 55 · 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 272 young dependants (under 15), 224 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
272 · 15 · 224 · 65 · Demographic dependency rat…
2. In a town, there are 156 young dependants (under 15), 76 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
156 · 15 · 76 · 65 · Demographic dependency rat…
3. In a town, there are 250 young dependants (under 15), 120 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
250 · 15 · 120 · 65 · Demographic dependency rat…
4. In a town, there are 21 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).
21 · 15 · 23 · 65 · Demographic dependency rat…
5. In a town, there are 38 young dependants (under 15), 54 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
38 · 15 · 54 · 65 · Demographic dependency rat…
6. In a town, there are 40 young dependants (under 15), 34 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
40 · 15 · 34 · 65 · Demographic dependency rat…
7. In a town, there are 288 young dependants (under 15), 176 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
288 · 15 · 176 · 65 · Demographic dependency rat…
8. In a town, there are 29 young dependants (under 15), 26 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
29 · 15 · 26 · 65 · Demographic dependency rat…
9. In a town, there are 216 young dependants (under 15), 90 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 · 90 · 65 · Demographic dependency rat…
10. In a town, there are 450 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).
450 · 15 · 280 · 65 · Demographic dependency rat…
11. In a town, there are 133 young dependants (under 15), 63 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 · 63 · 65 · Demographic dependency rat…
12. In a town, there are 190 young dependants (under 15), 130 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
190 · 15 · 130 · 65 · Demographic dependency rat…

12 questions · Seed 55 · 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 272 young dependants (under 15), 224 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
62
Total dependants = 272 + 224 = 496. Dependency ratio = (496 ÷ 800) × 100 = 62.
2. In a town, there are 156 young dependants (under 15), 76 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
58
Total dependants = 156 + 76 = 232. Dependency ratio = (232 ÷ 400) × 100 = 58.
3. In a town, there are 250 young dependants (under 15), 120 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 250 + 120 = 370. Dependency ratio = (370 ÷ 1000) × 100 = 37.
4. In a town, there are 21 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).
44
Total dependants = 21 + 23 = 44. Dependency ratio = (44 ÷ 100) × 100 = 44.
5. In a town, there are 38 young dependants (under 15), 54 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
46
Total dependants = 38 + 54 = 92. Dependency ratio = (92 ÷ 200) × 100 = 46.
6. In a town, there are 40 young dependants (under 15), 34 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 40 + 34 = 74. Dependency ratio = (74 ÷ 200) × 100 = 37.
7. In a town, there are 288 young dependants (under 15), 176 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
58
Total dependants = 288 + 176 = 464. Dependency ratio = (464 ÷ 800) × 100 = 58.
8. In a town, there are 29 young dependants (under 15), 26 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
55
Total dependants = 29 + 26 = 55. Dependency ratio = (55 ÷ 100) × 100 = 55.
9. In a town, there are 216 young dependants (under 15), 90 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 216 + 90 = 306. Dependency ratio = (306 ÷ 600) × 100 = 51.
10. In a town, there are 450 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).
73
Total dependants = 450 + 280 = 730. Dependency ratio = (730 ÷ 1000) × 100 = 73.
11. In a town, there are 133 young dependants (under 15), 63 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 = 133 + 63 = 196. Dependency ratio = (196 ÷ 700) × 100 = 28.
12. In a town, there are 190 young dependants (under 15), 130 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
32
Total dependants = 190 + 130 = 320. Dependency ratio = (320 ÷ 1000) × 100 = 32.

12 questions · Seed 55 · Age guidance, not curriculum certification