Our worldAges 16-18

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.

New variation Try interactive challenge Browse templates

Age band:Ages 13-15 Ages 16-18

Choose “Save as PDF” to keep a copy. Use your browser’s paper setting for A4 or Letter.

Worksheet StudioPractice pack · Ages 16-18

Demographic dependency ratios

Take your time. Show your thinking.

1. In a town, there are 175 young dependants (under 15), 98 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
175 · 15 · 98 · 65 · Demographic dependency rat…
2. In a town, there are 44 young dependants (under 15), 32 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
44 · 15 · 32 · 65 · Demographic dependency rat…
3. In a town, there are 171 young dependants (under 15), 216 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
171 · 15 · 216 · 65 · Demographic dependency rat…
4. In a town, there are 160 young dependants (under 15), 120 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
160 · 15 · 120 · 65 · Demographic dependency rat…
5. In a town, there are 207 young dependants (under 15), 126 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
207 · 15 · 126 · 65 · Demographic dependency rat…
6. In a town, there are 195 young dependants (under 15), 40 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
195 · 15 · 40 · 65 · Demographic dependency rat…
7. In a town, there are 340 young dependants (under 15), 270 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
340 · 15 · 270 · 65 · Demographic dependency rat…
8. In a town, there are 36 young dependants (under 15), 25 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
36 · 15 · 25 · 65 · Demographic dependency rat…
9. In a town, there are 82 young dependants (under 15), 20 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
82 · 15 · 20 · 65 · Demographic dependency rat…
10. In a town, there are 200 young dependants (under 15), 192 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
200 · 15 · 192 · 65 · Demographic dependency rat…
11. In a town, there are 116 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).
116 · 15 · 64 · 65 · Demographic dependency rat…
12. In a town, there are 42 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).
42 · 15 · 29 · 65 · Demographic dependency rat…

12 questions · Seed 61 · 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 175 young dependants (under 15), 98 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
39
Total dependants = 175 + 98 = 273. Dependency ratio = (273 ÷ 700) × 100 = 39.
2. In a town, there are 44 young dependants (under 15), 32 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
38
Total dependants = 44 + 32 = 76. Dependency ratio = (76 ÷ 200) × 100 = 38.
3. In a town, there are 171 young dependants (under 15), 216 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
43
Total dependants = 171 + 216 = 387. Dependency ratio = (387 ÷ 900) × 100 = 43.
4. In a town, there are 160 young dependants (under 15), 120 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
56
Total dependants = 160 + 120 = 280. Dependency ratio = (280 ÷ 500) × 100 = 56.
5. In a town, there are 207 young dependants (under 15), 126 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 207 + 126 = 333. Dependency ratio = (333 ÷ 900) × 100 = 37.
6. In a town, there are 195 young dependants (under 15), 40 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
47
Total dependants = 195 + 40 = 235. Dependency ratio = (235 ÷ 500) × 100 = 47.
7. In a town, there are 340 young dependants (under 15), 270 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
61
Total dependants = 340 + 270 = 610. Dependency ratio = (610 ÷ 1000) × 100 = 61.
8. In a town, there are 36 young dependants (under 15), 25 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
61
Total dependants = 36 + 25 = 61. Dependency ratio = (61 ÷ 100) × 100 = 61.
9. In a town, there are 82 young dependants (under 15), 20 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 82 + 20 = 102. Dependency ratio = (102 ÷ 200) × 100 = 51.
10. In a town, there are 200 young dependants (under 15), 192 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
49
Total dependants = 200 + 192 = 392. Dependency ratio = (392 ÷ 800) × 100 = 49.
11. In a town, there are 116 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).
45
Total dependants = 116 + 64 = 180. Dependency ratio = (180 ÷ 400) × 100 = 45.
12. In a town, there are 42 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).
71
Total dependants = 42 + 29 = 71. Dependency ratio = (71 ÷ 100) × 100 = 71.

12 questions · Seed 61 · 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 175 young dependants (under 15), 98 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
175 · 15 · 98 · 65 · Demographic dependency rat…
2. In a town, there are 44 young dependants (under 15), 32 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
44 · 15 · 32 · 65 · Demographic dependency rat…
3. In a town, there are 171 young dependants (under 15), 216 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
171 · 15 · 216 · 65 · Demographic dependency rat…
4. In a town, there are 160 young dependants (under 15), 120 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
160 · 15 · 120 · 65 · Demographic dependency rat…
5. In a town, there are 207 young dependants (under 15), 126 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
207 · 15 · 126 · 65 · Demographic dependency rat…
6. In a town, there are 195 young dependants (under 15), 40 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
195 · 15 · 40 · 65 · Demographic dependency rat…
7. In a town, there are 340 young dependants (under 15), 270 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
340 · 15 · 270 · 65 · Demographic dependency rat…
8. In a town, there are 36 young dependants (under 15), 25 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
36 · 15 · 25 · 65 · Demographic dependency rat…
9. In a town, there are 82 young dependants (under 15), 20 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
82 · 15 · 20 · 65 · Demographic dependency rat…
10. In a town, there are 200 young dependants (under 15), 192 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
200 · 15 · 192 · 65 · Demographic dependency rat…
11. In a town, there are 116 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).
116 · 15 · 64 · 65 · Demographic dependency rat…
12. In a town, there are 42 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).
42 · 15 · 29 · 65 · Demographic dependency rat…

12 questions · Seed 61 · 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 175 young dependants (under 15), 98 elderly dependants (65 and over), and 700 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
39
Total dependants = 175 + 98 = 273. Dependency ratio = (273 ÷ 700) × 100 = 39.
2. In a town, there are 44 young dependants (under 15), 32 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
38
Total dependants = 44 + 32 = 76. Dependency ratio = (76 ÷ 200) × 100 = 38.
3. In a town, there are 171 young dependants (under 15), 216 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
43
Total dependants = 171 + 216 = 387. Dependency ratio = (387 ÷ 900) × 100 = 43.
4. In a town, there are 160 young dependants (under 15), 120 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
56
Total dependants = 160 + 120 = 280. Dependency ratio = (280 ÷ 500) × 100 = 56.
5. In a town, there are 207 young dependants (under 15), 126 elderly dependants (65 and over), and 900 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
37
Total dependants = 207 + 126 = 333. Dependency ratio = (333 ÷ 900) × 100 = 37.
6. In a town, there are 195 young dependants (under 15), 40 elderly dependants (65 and over), and 500 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
47
Total dependants = 195 + 40 = 235. Dependency ratio = (235 ÷ 500) × 100 = 47.
7. In a town, there are 340 young dependants (under 15), 270 elderly dependants (65 and over), and 1000 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
61
Total dependants = 340 + 270 = 610. Dependency ratio = (610 ÷ 1000) × 100 = 61.
8. In a town, there are 36 young dependants (under 15), 25 elderly dependants (65 and over), and 100 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
61
Total dependants = 36 + 25 = 61. Dependency ratio = (61 ÷ 100) × 100 = 61.
9. In a town, there are 82 young dependants (under 15), 20 elderly dependants (65 and over), and 200 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
51
Total dependants = 82 + 20 = 102. Dependency ratio = (102 ÷ 200) × 100 = 51.
10. In a town, there are 200 young dependants (under 15), 192 elderly dependants (65 and over), and 800 working-age residents (15–64). Calculate the total dependency ratio (dependants per 100 working-age people).
49
Total dependants = 200 + 192 = 392. Dependency ratio = (392 ÷ 800) × 100 = 49.
11. In a town, there are 116 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).
45
Total dependants = 116 + 64 = 180. Dependency ratio = (180 ÷ 400) × 100 = 45.
12. In a town, there are 42 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).
71
Total dependants = 42 + 29 = 71. Dependency ratio = (71 ÷ 100) × 100 = 71.

12 questions · Seed 61 · Age guidance, not curriculum certification