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Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, and a white ribbon for learning how to stay. There are  dogs in the school.

  62 have blue ribbons, 55 have green ribbons, and 63 have white ribbons.

 31 have a blue ribbon and a green ribbon; 32 have a green ribbon and a white ribbon; 38 have a blue ribbon and a white ribbon.

16  have all three ribbons

 Feb 15, 2021
 #1
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Venn diagram:

 

 

The answer is 6.

 Feb 15, 2021
 #2
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no that was for a problem that had 39 have a blue ribbon and a white ribbon this one is 38 have a blue ribbon and a white ribbon 

Guest Feb 15, 2021
 #3
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Change the numbers    top row   9   15   8

                                       middle row 22 16  16

                                         bottom row    9

 

Total dogs in school = sum of all of those numbers

 Feb 15, 2021

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