# Number Series Questions and Answers Home > Numerical Tests > Number Series > Number Series Questions Look carefully for the pattern, and then choose which pair of numbers comes next.

42 40 38 35 33 31 28

A. 25 22
B. 26 23
C. 26 24
D. 25 23
E. 26 22

### Answer & Explanation:

Explanation: This is an alternating subtraction series in which 2 is subtracted twice, then 3 is subtracted once, then 2 is subtracted twice, and so on. 6 10 14 18 22 26 30

A. 36 40
B. 33 37
C. 38 42
D. 34 36
E. 34 38

### Answer & Explanation:

Explanation: This simple addition series adds 4 to each number to arrive at the next.  8 12 9 13 10 14 11

A. 14 11
B. 15 12
C. 8 15
D. 15 19
E. 8 5

### Answer & Explanation:

Explanation: This is an alternating addition and subtraction series, in which the addition of 4 is alternated with the subtraction of 3. 36 31 29 24 22 17 15

A. 13 11
B. 10 5
C. 13 8
D. 12 7
E. 10 8

### Answer & Explanation:

Explanation: This is an alternating subtraction series, which subtracts 5, then 2, then 5, and so on. 3 5 35 10 12 35 17

A. 22 35
B. 35 19
C. 19 35
D. 19 24
E. 22 24

### Answer & Explanation:

Explanation: This is an alternating addition series, with a random number, 35, interpolated as every third number. The pattern of addition is to add 2, add 5, add 2, and so on. The number 35 comes after each "add 2" step.  #### Square and Cubic Conversion

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.