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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 240 young dependants (under 15), 240 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
240 · 15 · 240 · 65 · Demographic dependency rat…
2. In a town, there are 180 young dependants (under 15), 115 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
180 · 15 · 115 · 65 · Demographic dependency rat…
3. In a town, there are 31 young dependants (under 15), 22 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 · 22 · 65 · Demographic dependency rat…
4. In a town, there are 96 young dependants (under 15), 104 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
96 · 15 · 104 · 65 · Demographic dependency rat…
5. In a town, there are 90 young dependants (under 15), 30 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
90 · 15 · 30 · 65 · Demographic dependency rat…
6. In a town, there are 200 young dependants (under 15), 290 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
200 · 15 · 290 · 65 · Demographic dependency rat…
7. In a town, there are 231 young dependants (under 15), 147 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
231 · 15 · 147 · 65 · Demographic dependency rat…
8. In a town, there are 37 young dependants (under 15), 29 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37 · 15 · 29 · 65 · Demographic dependency rat…
9. In a town, there are 150 young dependants (under 15), 126 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 · 126 · 65 · Demographic dependency rat…
10. In a town, there are 72 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).
72 · 15 · 76 · 65 · Demographic dependency rat…
11. In a town, there are 63 young dependants (under 15), 48 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 · 48 · 65 · Demographic dependency rat…
12. In a town, there are 252 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).
252 · 15 · 66 · 65 · Demographic dependency rat…

12 questions · Seed 57 · 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 240 young dependants (under 15), 240 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
48
Total dependants = 240 + 240 = 480. Dependency ratio = (480 ÷ 1000) × 100 = 48.
2. In a town, there are 180 young dependants (under 15), 115 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 = 180 + 115 = 295. Dependency ratio = (295 ÷ 500) × 100 = 59.
3. In a town, there are 31 young dependants (under 15), 22 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
53
Total dependants = 31 + 22 = 53. Dependency ratio = (53 ÷ 100) × 100 = 53.
4. In a town, there are 96 young dependants (under 15), 104 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
50
Total dependants = 96 + 104 = 200. Dependency ratio = (200 ÷ 400) × 100 = 50.
5. In a town, there are 90 young dependants (under 15), 30 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
40
Total dependants = 90 + 30 = 120. Dependency ratio = (120 ÷ 300) × 100 = 40.
6. In a town, there are 200 young dependants (under 15), 290 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
49
Total dependants = 200 + 290 = 490. Dependency ratio = (490 ÷ 1000) × 100 = 49.
7. In a town, there are 231 young dependants (under 15), 147 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
54
Total dependants = 231 + 147 = 378. Dependency ratio = (378 ÷ 700) × 100 = 54.
8. In a town, there are 37 young dependants (under 15), 29 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
66
Total dependants = 37 + 29 = 66. Dependency ratio = (66 ÷ 100) × 100 = 66.
9. In a town, there are 150 young dependants (under 15), 126 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
46
Total dependants = 150 + 126 = 276. Dependency ratio = (276 ÷ 600) × 100 = 46.
10. In a town, there are 72 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).
37
Total dependants = 72 + 76 = 148. Dependency ratio = (148 ÷ 400) × 100 = 37.
11. In a town, there are 63 young dependants (under 15), 48 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 63 + 48 = 111. Dependency ratio = (111 ÷ 300) × 100 = 37.
12. In a town, there are 252 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).
53
Total dependants = 252 + 66 = 318. Dependency ratio = (318 ÷ 600) × 100 = 53.

12 questions · Seed 57 · 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 240 young dependants (under 15), 240 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
240 · 15 · 240 · 65 · Demographic dependency rat…
2. In a town, there are 180 young dependants (under 15), 115 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
180 · 15 · 115 · 65 · Demographic dependency rat…
3. In a town, there are 31 young dependants (under 15), 22 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 · 22 · 65 · Demographic dependency rat…
4. In a town, there are 96 young dependants (under 15), 104 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
96 · 15 · 104 · 65 · Demographic dependency rat…
5. In a town, there are 90 young dependants (under 15), 30 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
90 · 15 · 30 · 65 · Demographic dependency rat…
6. In a town, there are 200 young dependants (under 15), 290 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
200 · 15 · 290 · 65 · Demographic dependency rat…
7. In a town, there are 231 young dependants (under 15), 147 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
231 · 15 · 147 · 65 · Demographic dependency rat…
8. In a town, there are 37 young dependants (under 15), 29 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37 · 15 · 29 · 65 · Demographic dependency rat…
9. In a town, there are 150 young dependants (under 15), 126 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 · 126 · 65 · Demographic dependency rat…
10. In a town, there are 72 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).
72 · 15 · 76 · 65 · Demographic dependency rat…
11. In a town, there are 63 young dependants (under 15), 48 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 · 48 · 65 · Demographic dependency rat…
12. In a town, there are 252 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).
252 · 15 · 66 · 65 · Demographic dependency rat…

12 questions · Seed 57 · 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 240 young dependants (under 15), 240 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
48
Total dependants = 240 + 240 = 480. Dependency ratio = (480 ÷ 1000) × 100 = 48.
2. In a town, there are 180 young dependants (under 15), 115 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 = 180 + 115 = 295. Dependency ratio = (295 ÷ 500) × 100 = 59.
3. In a town, there are 31 young dependants (under 15), 22 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
53
Total dependants = 31 + 22 = 53. Dependency ratio = (53 ÷ 100) × 100 = 53.
4. In a town, there are 96 young dependants (under 15), 104 elderly dependants (65 and over), and 400 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
50
Total dependants = 96 + 104 = 200. Dependency ratio = (200 ÷ 400) × 100 = 50.
5. In a town, there are 90 young dependants (under 15), 30 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
40
Total dependants = 90 + 30 = 120. Dependency ratio = (120 ÷ 300) × 100 = 40.
6. In a town, there are 200 young dependants (under 15), 290 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
49
Total dependants = 200 + 290 = 490. Dependency ratio = (490 ÷ 1000) × 100 = 49.
7. In a town, there are 231 young dependants (under 15), 147 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
54
Total dependants = 231 + 147 = 378. Dependency ratio = (378 ÷ 700) × 100 = 54.
8. In a town, there are 37 young dependants (under 15), 29 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
66
Total dependants = 37 + 29 = 66. Dependency ratio = (66 ÷ 100) × 100 = 66.
9. In a town, there are 150 young dependants (under 15), 126 elderly dependants (65 and over), and 600 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
46
Total dependants = 150 + 126 = 276. Dependency ratio = (276 ÷ 600) × 100 = 46.
10. In a town, there are 72 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).
37
Total dependants = 72 + 76 = 148. Dependency ratio = (148 ÷ 400) × 100 = 37.
11. In a town, there are 63 young dependants (under 15), 48 elderly dependants (65 and over), and 300 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 63 + 48 = 111. Dependency ratio = (111 ÷ 300) × 100 = 37.
12. In a town, there are 252 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).
53
Total dependants = 252 + 66 = 318. Dependency ratio = (318 ÷ 600) × 100 = 53.

12 questions · Seed 57 · Age guidance, not curriculum certification