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Logical Reasoning - Number Series

Exercise : Number Series - Type 2
Directions to Solve
Look carefully for the pattern, and then choose which pair of numbers comes next.
1.
28 25 5 21 18 5 14
11 5
10 7
11 8
5 10
10 5
Answer: Option
Explanation:
This is an alternating subtraction series with the interpolation of a random number, 5, as every third number. In the subtraction series, 3 is subtracted, then 4, then 3, and so on.
2.
8 11 21 15 18 21 22
25 18
25 21
25 29
24 21
22 26
Answer: Option
Explanation:
This is an alternating addition series, with a random number, 21, interpolated as every third number. The addition series alternates between adding 3 and adding 4. The number 21 appears after each number arrived at by adding 3.
3.
9 16 23 30 37 44 51
59 66
56 62
58 66
58 65
54 61
Answer: Option
Explanation:
Here is a simple addition series, which begins with 9 and adds 7.
4.
2 8 14 20 26 32 38
2 46
44 50
42 48
40 42
32 26
Answer: Option
Explanation:
This is a simple addition series, which begins with 2 and adds 6.
5.
9 11 33 13 15 33 17
19 33
33 35
33 19
15 33
19 21
Answer: Option
Explanation:
In this alternating repetition series, a random number, 33, is interpolated every third number into a simple addition series, in which each number increases by 2.
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