Difference between revisions of "Talk:2007 AMC 8 Problems/Problem 13"

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Is there a mistake with this answer key? It defines the union of a Venn diagram as the sum of all elements in A and B, but a union is actually all elements in the whole diagram. I think this is the correct answer:
 
  
Let x be the number of elements in A and B.
 
2x=2007-1001
 
2x=1006
 
x=503
 
 
So the answer is (A) 503. Please correct me if I'm wrong :)
 

Latest revision as of 13:44, 13 August 2019