Some say the answer is 11, others say 17. There are multiple ways to work it out.
This justifies 11:
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.
But that is just one of the justifications.
9
The number which best completes the sequence below is:2 9 5 13 10 19 17?
The number that completes the sequence would be 11. Imagine the sequence as two sequences of every other number starting with the first 2 and the first 6. You would have 2 3 6 and 6 8 12 2 3 6 is adding odd numbers starting with one. 6 8 12 is adding even numbers starting with two. The next number belongs to 2 3 6 so you would add 5 to get 11.
(plus) + 4 (minus) - 3
29,28
The number which best completes the sequence below is: 2 9 5 13 10 19 17 ?
9
What number best completes the sequence 1 1/2 5 10 1/2 18
13 20 12
The number which best completes the sequence below is:2 9 5 13 10 19 17?
The number that completes the sequence would be 11. Imagine the sequence as two sequences of every other number starting with the first 2 and the first 6. You would have 2 3 6 and 6 8 12 2 3 6 is adding odd numbers starting with one. 6 8 12 is adding even numbers starting with two. The next number belongs to 2 3 6 so you would add 5 to get 11.
The number which best completes the sequence below is:1 1 3 2 4 6 5 25 ?
that best completes the sequence 2 9 5 13 10 19 17 is 27.
2 6 3 8 6 12 2 6 3 8 6 12
1
27. But that continues the sequence, it does not complete it.
(plus) + 4 (minus) - 3