Art of Problem Solving
AoPS Online
Math texts, online classes, and more
for students in grades 5-12.
Visit AoPS Online ‚
Books for Grades 5-12 Online Courses
Beast Academy
Engaging math books and online learning
for students ages 6-13.
Visit Beast Academy ‚
Books for Ages 6-13 Beast Academy Online
AoPS Academy
Small live classes for advanced math
and language arts learners in grades 2-12.
Visit AoPS Academy ‚
Find a Physical Campus Visit the Virtual Campus

Talk:2007 AMC 8 Problems/Problem 13

Revision as of 18:23, 12 August 2019 by Purrpl cat (talk | contribs) (Created page with "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 diagra...")
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

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 :)

Retrieved from "https://artofproblemsolving.com/wiki/index.php?title=Talk:2007_AMC_8_Problems/Problem_13&oldid=108799"