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Mean = median (Posted on 2014-02-20) Difficulty: 2 of 5
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    
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Some Thoughts 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
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