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Question
The table shows the 10 most populated countries in the world in 2018 with their areas. Calculate their population densities and complete the table.
| Rank | Country | Population in Crores (2018) | Approx. Area (in lakh sq. km.) | Population Density (persons/sq. km.) |
|---|---|---|---|---|
| 1 | China | 142.8 | 96.0 | |
| 2 | India | 135.3 | 32.9 | |
| 3 | United States of America (USA) | 32.7 | 95.3 | |
| 4 | Indonesia | 26.8 | 19.1 | |
| 5 | Pakistan | 21.2 | 8.9 | |
| 6 | Brazil | 20.9 | 85.2 | |
| 7 | Nigeria | 19.6 | 9.2 | |
| 8 | Bangladesh | 16.1 | 1.5 | |
| 9 | Russia | 14.6 | 171.0 | |
| 10 | Mexico | 12.6 | 19.7 |
Complete the Table
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Solution
Population density is calculated as:
Population Density = Population ÷ Area
Since population is given in crores and area in lakh sq. km, multiply the result by 100.
| Rank | Country | Population in Crores (2018) | Approx. Area (in lakh sq. km.) | Population Density (persons/sq. km.) |
|---|---|---|---|---|
| 1 | China | 142.8 | 96.0 | 149 |
| 2 | India | 135.3 | 32.9 | 411 |
| 3 | United States of America (USA) | 32.7 | 95.3 | 34 |
| 4 | Indonesia | 26.8 | 19.1 | 140 |
| 5 | Pakistan | 21.2 | 8.9 | 238 |
| 6 | Brazil | 20.9 | 85.2 | 25 |
| 7 | Nigeria | 19.6 | 9.2 | 213 |
| 8 | Bangladesh | 16.1 | 1.5 | 1,073 |
| 9 | Russia | 14.6 | 171.0 | 9 |
| 10 | Mexico | 12.6 | 19.7 | 64 |
Example: India
Population Density
= (135.3 ÷ 32.9) × 100
= 411 persons per sq. km.
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