SOLUTION: 12-n, 12, 12+n What is the average (arithmetic mean) of the 3 quantities in the list above?

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Question 297962: 12-n, 12, 12+n
What is the average (arithmetic mean) of the 3 quantities in the list above?
Found 2 solutions by user_dude2008, JBarnum:
Answer by user_dude2008(1861) About Me  (Show Source):
You can put this solution on YOUR website!
(12-n+12+12+n)/3=36/3=12

Answer by JBarnum(2044) About Me  (Show Source):