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It would seem to be 11.
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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.
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The number which best completes the sequence below is 1 12 5 10 12 18?
The sequence appears to alternate between adding and subtracting numbers. The pattern seems to be +11, -7, +5, -2, +6. Following this pattern, the next number in the sequence would be +3 from the previous number, which would be 21.
What is the next number in the sequence 18 15 5 39 36?
The next number could be 26 The next number could be 12 - - - - - - - - - The next number that is in the sequence is 12.
What comes next in this number series 236175969 48 12?
The next number is the sequence 236175969, 48, 12 is 236175861.
What is next in this sequence 12 5 20 1 18 4?
25 is the next number that appears in that sequence.
What is the next number in the sequence 972 324 108 36?
12
