All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Numbers
Set Me Up Again (Posted on 2016-03-16) Difficulty: 4 of 5
While reviewing a lesson on union and intersection, Mrs. Putnam again asked for three students to each write down a set of numbers from {1,2,3,4,5,6,7,8,9,10}. After they had done so, she looked at their sets and told the class, "Like last time, the union of these three sets is all ten numbers, but their intersection is empty."

One student interjected to say that he saw that two of the sets have a union that was all ten numbers.

Another student noted that there were two sets whose intersection was empty.

How many triplets of sets A, B, C satisfy all the above criteria?

No Solution Yet Submitted by Brian Smith    
No Rating

Comments: ( You must be logged in to post comments.)
  Subject Author Date
Solutioncomputer solutionCharlie2016-03-16 16:10:34
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (4)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information