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What number of people do not collect comic books and also do not like drawing

What number of people do not collect comic books and also do not like drawing-example-1

1 Answer

4 votes

12 collect comics and drawing

5 collect comics

7 drawing

x

30=12+75+x

x=6

Here any of the data are counting the same people because each one has a different description, so you can solve if like this

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