18
The number which best completes the sequence below is:2 9 5 13 10 19 17?
29,28
18
26
The difference between consecutive numbers is 1, 2, 3, 4. So the next difference will be... Added to 13 gives...
The number which best completes the sequence below is:2 9 5 13 10 19 17?
that best completes the sequence 2 9 5 13 10 19 17 is 27.
What number best completes the sequence 1 1/2 5 10 1/2 18
27
29,28
27
27. But that continues the sequence, it does not complete it.
27
13 20 12
18
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.