If 75 percent of the employees of a certain company take a winter vacation, 40 percent take a winter and a summer vacation, and 20 percent take neither a winter nor a summer vacation, what Q percent of the employees take a summer vacation but not a winter vacation?	Choose the correct choice from the following answers:
A) 5%	B) 15%	C) 25%	D) 35%	E) 45%
Winter = 75   Both = 40   Neither = 20   Winter + Summer - Both + Neither = 100   75 + Summer - 40 + 20 = 100   Summer = 45   Summer but not winter Q= Summer only = Summer - Both(i.e. summer overlap with winter) = 45 - 40= 
<gadget id="calculator">45 - 40</gadget>
<output>5</output>
5   5%nswer: 5%
<result>A</result>
If 75 percent of the employees of a certain company take a winter vacation, 40 percent take a winter and a summer vacation, and 20 percent take neither a winter nor a summer vacation, what Q percent of the employees take a summer vacation but not a winter vacation?