11
9
What number best completes the sequence 1 1/2 5 10 1/2 18
11
13 20 12
15, since 15*2 = 9*2 + 12*2
The number which best completes the sequence below is:2 9 5 13 10 19 17?
2 6 3 8 6 12 2 6 3 8 6 12
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.
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.
15.
1