perplexus.info :: Just Math : Mean = median

Mean = median (Posted on 2014-02-20)

Add a fifth number to the set {3,7,9,10} so that the mean is equal to the median of the set.

Show whether or not it is possible to create a set of numbers where the same problem yields more solutions than the above.

No Solution Yet Submitted by Jer

No Rating

Comments: ( Back to comment list | You must be logged in to post comments.)

1st part only

| Comment 1 of 4

3+7+9+10=29

29+m=5*m

m=29/4=7.25

Posted by Ady TZIDON on 2014-02-20 13:15:33

Please log in:

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

Chatterbox:


perplexus dot info