The sequence appears to be alternating between addition and subtraction operations. Starting with 7, we subtract 6 to get 1, then add 4 to get 5, subtract 8 to get -3, and then add 10 to get 7. Following this pattern, the next operation would be subtraction, so we subtract 12 from 7 to get -5. Therefore, the number that best completes the sequence is -5.
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)