Number Series

Number Series

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Question 1
Look at this series: 7, 10, 8, 11, 9, 12, ... What number should come next?
A
7
B
10
C
12
D
13
Question 1 Explanation: 
This is a simple alternating addition and subtraction series. In the first pattern, 3 is added; in the second, 2 is subtracted.
Question 2
Look at this series: 36, 34, 30, 28, 24, ... What number should come next?
A
20
B
22
C
23
D
26
Question 2 Explanation: 
This is an alternating number subtraction series. First, 2 is subtracted, then 4, then 2, and so on.
Question 3
Look at this series: 22, 21, 23, 22, 24, 23, ... What number should come next?
A
22
B
24
C
25
D
26
Question 3 Explanation: 
In this simple alternating subtraction and addition series; 1 is subtracted, then 2 is added, and so on.
Question 4
Look at this series: 53, 53, 40, 40, 27, 27, ... What number should come next?
A
12
B
14
C
27
D
53
Question 4 Explanation: 
In this series, each number is repeated, then 13 is subtracted to arrive at the next number.
Question 5
Look at this series: 21, 9, 21, 11, 21, 13, 21, ... What number should come next?
A
14
B
15
C
21
D
23
Question 5 Explanation: 
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.
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There are 5 questions to complete.

2 thoughts on “Number Series

  • March 2, 2018 at 4:57 pm
    Permalink

    In question 2, if you subtract 2 or 4 from 24, neither case obtain 23

    Reply
    • March 5, 2018 at 5:00 pm
      Permalink

      Thanks for feedback . Answer Updated.

      Reply

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