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A survey is conducted among $106$ people. Among them $47$ people have dogs, $58$ people have cats and $38$ people have parrots. $16$ people have both a dog and cat, $15$ people have both cat and parrot and $17$ people have both a parrot and dog. Each of them has at least one of the pets.

How many people have only dog?

1. $37$
2. $15$
3. $23$
4. $20$

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0 answers
1
68 views
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2
1 vote
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3
2 votes
0 answers
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1,546 views
1 vote
1 answer
5