In a survey of 116 pet owners, 36 said they own a dog, and 50 said they own a cat. 9 said they own both a dog and a cat. How many owned a cat but not a dog?
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We know that 36 people own a dog and 9 of them also own a cat. So, there are 36 - 9 = 27 people who own only a dog. Show more…
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