What is the population density of a country with a total population of 140,000,000 and a total land area of 500,000 km\(^2\)?
Answer Details
Population density measures how many people live per unit area of land. It is calculated using the formula:
\[\text{Population Density} = \frac{\text{Total Population}}{\text{Total Land Area}}\]
Substituting the given values:
\[\text{Population Density} = \frac{140{,}000{,}000}{500{,}000} = 280 \text{ persons per km}^2\]
The correct answer is 280 persons per km\(^2\). The other options result from arithmetic errors: dividing incorrectly or using the wrong figures in the formula.