Home > Practice > Verbal Reasoning > Series Completion > Miscellaneous
31. 36, 34, 30, 28, 24, ... What number should come next?
Solution:
This is an alternating number subtraction series. First, 2 is subtracted, then 4, then 2, and so on.
32. 22, 21, 23, 22, 24, 23, ... What number should come next?
Solution:
In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on.
33. 53, 53, 40, 40, 27, 27, ... What number should come next?
Solution:
In this series, each number is repeated, then 13 is subtracted to arrive at the next number.
34. 21, 9, 21, 11, 21, 13, 21, ... What number should come next?
Solution:
In this alternating repetition series, the random number 21 is interpolated every other number into an otherwise simple addition series that increases by 2, beginning with the number 9.
35. 58, 52, 46, 40, 34, ... What number should come next?
Solution:
This is a simple subtraction series. Each number is 6 less than the previous number.
36. 3, 4, 7, 8, 11, 12, ... What number should come next?
Solution:
This alternating addition series begins with 3; then 1 is added to give 4; then 3 is added to give 7; then 1 is added, and so on.
37. 8, 22, 8, 28, 8, ... What number should come next?
Solution:
This is a simple addition series with a random number, 8, interpolated as every other number. In the series, 6 is added to each number except 8, to arrive at the next number.
38. 31, 29, 24, 22, 17, ... What number should come next?
Solution:
This is a simple alternating subtraction series, which subtracts 2, then 5.
39. 1.5, 2.3, 3.1, 3.9, ... What number should come next?
Solution:
In this simple addition series, each number increases by 0.8.
40. 14, 28, 20, 40, 32, 64, ... What number should come next?
Solution:
This is an alternating multiplication and subtracting series: First, multiply by 2 and then subtract 8.