bonanova Posted March 30, 2008 Report Share Posted March 30, 2008 In a recent survey of musical preferences among BrainDen'ers, it was determined that 280 like jazz; 254 like classical; 280 like country/western. 97 like both jazz and classical; 138 like both classical and country/western; 152 like both country/western and jazz. Only 73 like jazz and classical and country/western. How many BrainDen'ers were interviewed? Quote Link to comment Share on other sites More sharing options...
0 Guest Posted March 30, 2008 Report Share Posted March 30, 2008 500. Each circle contains the number of people who like a certain music. I found it easier to start from those who like all three, then those who like only 2 types of music and finally those who only like one (The math is shown above each number). Don't know if this is clear enough... If not, ask. PS. J:Jazz - C:Classical - C/W:Country/Western Quote Link to comment Share on other sites More sharing options...
0 Guest Posted March 30, 2008 Report Share Posted March 30, 2008 Quote Link to comment Share on other sites More sharing options...
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bonanova
In a recent survey of musical preferences among BrainDen'ers, it was determined that
280 like jazz; 254 like classical; 280 like country/western.
97 like both jazz and classical; 138 like both classical and country/western; 152 like both country/western and jazz.
Only 73 like jazz and classical and country/western.
How many BrainDen'ers were interviewed?
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