Asked by Kenneth

In a class of 40 students it is known that 22 of them study Art, 18 of them study study Chemistry.5 students study all the 3 subjects, 9 study Art and Biology, 7 study Art but not Chemistry and 11 study exactly one subject.
Answered by Anonymous
sounds like pretty much everything is known.
Answered by Adam Tanko
Please help me with the answer
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