Number Series Questions and Answers
question divider line

Home > Numerical Tests > Number Series > Number Series Questions
question divider line

Look carefully for the pattern, and then choose which pair of numbers comes next.

28 25 5 21 18 5 14


A. 11 5
B. 10 7
C. 11 8
D. 5 10
E. 10 5

Answer & Explanation:

Answer: Option A

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.



question divider line

8 11 21 15 18 21 22


A. 25 18
B. 25 21
C. 25 29
D. 24 21
E. 22 26

Answer & Explanation:

Answer: Option B

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.



question divider line
question divider line

9 16 23 30 37 44 51


A. 59 66
B. 56 62
C. 58 66
D. 58 65
E. 54 61

Answer & Explanation:

Answer: Option D

Explanation: Here is a simple addition series, which begins with 9 and adds 7.



question divider line

2 8 14 20 26 32 38


A. 2 46
B. 44 50
C. 42 48
D. 40 42
E. 32 26

Answer & Explanation:

Answer: Option B

Explanation: This is a simple addition series, which begins with 2 and adds 6.



question divider line

9 11 33 13 15 33 17


A. 19 33
B. 33 35
C. 33 19
D. 15 33
E. 19 21

Answer & Explanation:

Answer: Option A

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.



question divider line

Page 1   | Page 2   | Page 3   | Page 4   | Page 5   | Page 6   | Page 7   | Page 8   | Page 9   | Page 10   | Page 11   | Page 12   | Page 13   | Page 14   | Page 15  

question divider line

More educational and fun tests below.




Questions or comments? Please discuss below.




Copyright © The Online Test Centre - Since 2005 | Terms and Conditions & Privacy Policy | Blog


The largest provider of tests on the web. We have thousands of questions covering

 

numerical and verbal aptitude tests, diagrammatic and logic tests, reasoning tests,

 

puzzles, general knowledge test questions and GMAT test advice and questions.

 

No login required. All tests are free. All the tests you need when you need them.