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At my office, 16 people own cats, 9 people own dogs, and  $8$ people own both cats and dogs. How many people own a cat or a dog?

(Remember that in mathematics, the word "or" is used in the inclusive sense. So if you own both a cat and a dog, then you are included in the category of people "who own a cat or a dog".)

 Nov 5, 2021
 #1
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Create Equations:

  • B = C&D = 8
  • C = 16
  • D = 9

Create Venn Diagram:

Cat

Both

(Cat + Dog)

Dog
8 8 1

 

Solve Question:

  • How many people own a cat or a dog?
  • 16 + 1 = 17 people
 Nov 6, 2021

18 Online Users

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