A class adviser surveys 35 of his students on the kind of pets they have at home. he found that 15 have dogs, 12 have cats, and 8 have birds. 5 have dogs and cats, 4 have dogs and birds, and 2 have cats and birds. if no one has all three kinds of pets, how many students have none of these pets

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Answers

2015-06-24T19:54:22+08:00
None,because all of them have some pets
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Thanks but can you help me with the solution so i can learn it since I'm new to venn diagram
2015-06-25T15:58:08+08:00
35 because out of 35 students that she survey no one has three kinds of pet at home... am i right? :)
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