Hong Kong: 6,841 people / km sq.
United Kingdom: 281 people / km sq.
Denmark: 135 people / km sq.
Greatest population density: Hong Kong
Least population density: Denmark
Explanation:
Formula:
Population density = Population / Area
Solution:
Hong Kong's population density = 7,552,810 / 1,104 = 6,841 people / km sq.
United Kingdom's population dentsity = 68,207,116 / 242,900 = 281 people / km sq.
Denmark's population density = 5,813,296 / 43,094 = 135 people / km sq.
Since 6,841 > 281 > 135
Hong Kong has the greatest population density and Denmark has the least population density.