Twenty-five percent of the residents of City \(Y\) are 65 years old or older. Twenty percent of the residents of City

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Twenty-five percent of the residents of City \(Y\) are 65 years old or older. Twenty percent of the residents of City \(Y\) who are under the age of 65 are age 18 or younger. What percent of the residents of City \(Y\) are between the ages of 18 and 65?

A. 15%
B. 25%
C. 45%
D. 60%
E. 75%

Answer: D

Source: Princeton Review
Source: — Problem Solving |