83
-23
any 3 numbers that add up to 48, e.g. 12+23+13 or 24+23+1 the list goes on but the 3 numbers MUST add up to 48 to get the mean of 16
83
23
How about: 23+3 = 26 as one example
23 + 3 + 3 5 + 7 + 17
3 + 20 = 23
35
They are: 23+3 = 26
37 and 3 29 and 11 23 and 17
12, 16 and 23 is one possible triplet.