A survey of pet owners shows that:
61 have a cat
70 have a dog
30 have both a cat and...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 04.02.2022 16:50, hiitslillyhere
A survey of pet owners shows that:
61 have a cat
70 have a dog
30 have both a cat and a dog
15 have neither a cat nor a dog
How many pet owners were surveyed?
How many have a dog but no cat?
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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