The number which best completes the sequence below is:1 1 3 2 4 6 5 25 ?
25
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.
15 (times 2, plus 2, minus 1)
23, 22, 44, 45. The pattern is minus 2, minus 1, times 2, plus 1, repeat.
What number best completes the sequence 1 1/2 5 10 1/2 18
The number which best completes the sequence below is:1 1 3 2 4 6 5 25 ?
335
485
485
26
25
18
The sequence is not a finite one so it cannot be completed.
15.
15
15,30,32,31,62,64,63..... (*2,+2,-1)