Looking at the differences between the nubmers in the order given gives this list of numbers
+4 -3 +5 -2 +6
There are alternative negative an positive numbers.
One could say the positive numbers are going up one at a time while the negative numbers are going down one at a time.
If that is the case the sequence needs the next negative number which would be -1 so 12 -1 = 11
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No; 6/9 = 2/3 = 8/12.No; 6/9 = 2/3 = 8/12.No; 6/9 = 2/3 = 8/12.No; 6/9 = 2/3 = 8/12.
(6+2+8+6+3)/5 =(6+10+6+3)/5 =(12+10+3)/5 =(12+13)/5 =25/5 =5 Five is the average of 6, 2, 8, 6, and 3.
4/6, 2/3
2/3 = 4/6 = 8/12, 8/12 - 5/12 = 3/12
It would seem to be 11. ------------------------------------- Here are a couple of ways to justify the answer "11": #1: 2 -> 6 is an increase of 4. 6 -> 3 is a decrease of 3. 3 -> 8 is an increase of 5. 8 -> 6 is a decrease of 2. 6 -> 12 is an increase of 6. 12 -> 11 is a decrease of 1. #2: 2 -> 3 is an (odd) increase of 1. 6 -> 8 is an (even) increase of 2. 3 -> 6 is an (odd) increase of 3. 8 -> 12 is an (even) increase of 4. 6 -> 11 is an (odd) increase of 5.