City X has a total area of 120 square miles, with 15 square miles being water. It has a population of 68,000 people. City Y has a total area of 100 square miles, with 10 square miles being water. It has a population of 60,000 people. Which of the following statements about their population densities (per square mile of land area) is true?
City X has a higher population density than City Y.
City Y has a higher population density than City X.
City X and City Y have approximately the same population density.
The population density of City X is exactly 1.5 times that of City Y.
