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April 19, 2014

Homework Help: college Mathematics

Posted by Carol on Tuesday, February 12, 2013 at 10:21am.

I have been trying to figure this out for day's please help if you can.

A survey of 59 customers was taken at a book store regarding the type of novels purchased. The survey found 34 customers purchased mysteries, 27 purchased science fiction, 20 purchased romance novels, 13 purchased mysteries and science fiction, 10 purchased mysteries and romance novels, 7 purchased science fiction and romance novels, and 3 purchased all types.

A) How many purchased mysteries and science fiction, but not romance?

B)How many purchased mysteries or science fiction?

C) How many purchase exactly 2 types?

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