Number Series Reasoning Questions - Free PDF Download

Reasoning Ability section is one of the important subjects of all competitive exams. Of all the topics covered under the section, Number or Letter series is asked for 3-5 marks, which seems to be valuable! So, knowing all the patterns asked in this topic will really help the candidate to master the topic. And thus save the marks! In this article let us go through a different number series questions and also download a free PDF with questions related to this topic.

Tips and Tricks to solve Number Series Questions.

What is meant by Number Series?

In this question, a series of numbers or letters, following a specific pattern will be given. But a number or letter at some position will be missing or wrongly marked. Candidates have to identify that number and fill the gap or identify the wrong number. For the same, the simplification part has to be strong and should be able to guess the pattern from the numbers.

The series can be of differences, addition, product, squares and cubes, miscellaneous series. Also, series can be like even number, an odd number, prime number series. Squares and cubes are easily identifiable and scorable among the series. The combination of all these can also be expected. For letter series, candidates should know the order and rank or position values of each alphabet, which will surely help to solve the series. One can solve the problem from either left to right or vice-versa.

Let us practice questions with an example each.

Sample Questions

1. 9, 8,10, 9, 11, 10, ……….

Solution: 12. The series is having alternate subtraction and addition.

9 – 1 = 8

8 + 2 = 10

2. 4, 20, 80, 240, …….

Solution: 480. This is a product series. Check the series, the numbers are increasing. If the succeeding number is always larger than the square of the predecessor number, we can expect a product or series with squares or cubes.

4 × 5 = 20

20 × 4 = 80

80 × 3 = 240

240 × 2 = 480

For easily following these questions candidates should work with more questions. Also, Candidates should know the shortcut methods for multiplication, division, etc. Follow Entri for more Simplification questions and shortcut methods related to that.

Practice a free mock test for Indian Bank PO.

3. CDEF is related to FGJI in the same way as LJPL is related to …….

Solution: XMFO. Take the position values of CDEF, which is respectively- 3, 4, 5, 6.

C × 2 = F

D+3= G

E × 2 = J

F + 3 = I

4. BV, CU, ES, HP, LL, QG, …….

Solution: WA. The first letter are added in order like +1, +2, +3, +4, +5, +6. And the second let’s -1, -2, -3, -4, -5,-6.

Now, we can check some wrong number series pattern. Candidates have to find the wrong number among the numbers.

5. 6, 18, 21, 60, 66, 198

Solution: 60. The series is following a pattern × 3, + 3. And the correct number should be 63.

6. 40000, 10500, 2500, 625, 156.25, 39.0625

Solution: 10500. Each number is divided by 4. And the correct number should be 10000. If we are answering the series fro right to left the series will be a multiplication series.

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Click on the given link below and practice a full set of Number Series questions.

NUMBER SERIES PRACTICE QUESTION PDF

Practice more questions on Missing and wrong number series, alphabet, and alphanumeric series. Regular practice of previous questions and new expected patterns will help you to identify the question patterns easily. The speed and accuracy are crucial for such questions.

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