 # Wrong Term Number Series Quiz with PDF For EPFO Assistant Pre, IBPS Clerk Pre, IBPS RRB Clerk 2020

Important for :
1
2,  3,  6,  15,  45,  156.5,  630
» Explain it
E
The series pattern is ×1.5, ×2, ×2.5, ×3, × 3.5, ×4.

 Series Pattern Given Series 2 2 ✓ 2 × 1.5 = 3 3 ✓ 3 × 2 = 6 6 ✓ 6 × 2.5 = 15 15 ✓ 15 × 3 = 45 45 ✓ 45 × 3.5 = 157.5 156.5 ✕ 157.5 × 4 = 630 630 ✓

Hence, there should be 157.5 in place of 156.5.

Hence, option E is correct.

2
36,  20,  12,  8,  6,  5.5,  4.5
» Explain it
A
The series is –16, –8, –4, –2, –1, –0.5, and so on.

 Series Pattern Given Series 36 36 ✓ 36 – 16 = 20 20 ✓ 20 – 8 = 12 12 ✓ 12 – 4 = 8 8 ✓ 8 – 2 = 6 6 ✓ 6 – 1 = 5 5.5 ✕ 5 – 0.5 = 4.5 4.5 ✓

Hence, there should be 5 in place of 5.5.

Hence, option A is correct.

3
1,  3,  9,  31,  128,  651,  3913
» Explain it
B
The series is ×1+2, ×2+3, ×3+4, and so on.

 Series Pattern Given Series 1 1 ✓ 1 × 1 + 2 = 3 3 ✓ 3 × 2 + 3 = 9 9 ✓ 9 × 3 + 4 = 31 31 ✓ 31 × 4 + 5 = 129 128 ✕ 129 × 5 + 6 = 651 651 ✓ 651 × 6 + 7 = 3913 3913 ✓

Hence, there should be 129 in place of 128.

Hence, option B is correct.
4
2,  3,  10,  40,  172,  885,  5346
» Explain it
C
The series is ×1+12, ×2+22, ×3+32, and so on.

 Series Pattern Given Series 2 2 ✓ 2 ×1+12 = 3 3 ✓ 3 ×2+22 = 10 10 ✓ 10 ×3+32 = 39 40 ✕ 39 ×4+42 = 172 172 ✓ 172 ×5+52 = 885 885 ✓ 885 ×6+62 = 5346 5346 ✓

Hence, there should be 39 in place of 40.

Hence, option C is correct.

5
5,  8,  16,  26,  50,  98,  194
» Explain it
D
The series is ×2–2.

 Series Pattern Given Series 5 5 ✓ 5 ×2–2 = 8 8 ✓ 8 ×2–2= 14 16 ✕ 14 ×2–2= 26 26 ✓ 26 ×2–2= 50 50 ✓ 50 ×2–2= 98 98 ✓ 98 ×2–2= 194 194 ✓

Hence, there should be 14 in place of 16.

Hence, option D is correct.

### Number Series Questions Quiz with PDF for SBI Clerk Pre, IBPS Clerk Pre, IBPS RRB Clerk

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Folks! In this Number series Questions, we are going to talk about different kinds of Number Series Question which are frequently asked in Bank Clerk Pre Exams. Frankly speaking, we have been witnessing a lot of change in pattern of questions specifically in Bank Exams and Number Series Questions can fetch you good marks in this every changing pattern of Bank Exams. It is very much probable that you see the major portion of sbi clerk pre 2020 and ibps clerk pre 2020 exams covered with Number series questions.

A numerical series is given in which a number is wrongly placed. You are asked to identify that particular next term. A complete numerical series is followed by an incomplete numerical series. You need to solve that incomplete numerical series in the same pattern in which the complete numerical series is given.

Different types of Number Series are being asked in SBI Clerk, IBPS Clerk, RRB assistant pre and NIACL:

The most common patterns followed by number series are:

1. Series consisting of Perfect Squares:

A series based on Perfect squares is most of the times based on the perfect squares of the numbers in a specific order & generally one of the numbers is missing in this type of series.

Ex:  324, 361, 400, 441,?

Sol: 324 = 182 , 361 = 192, 400 = 202, 441 = 212, 484 = 222

2. Perfect Cube Series:

It is based on the cubes of numbers in a particular order and one of the  numbers is missing in the series.

Ex: 512, 729, 1000,?

Sol: 83, 93, 103, 113

To solve Number Series Questions Quiz with Answers for sbi clerk pre 2020 and other Banking & Insurance Exams like SBI, IBPS, NABARD & RBI Grade B, NIACL, and LIC, you need to brush up your pattern skills; you need to observe pattern faster and accurately than others. The difficult Pattern Number Series should be solved within 1-1-2 minutes. Moderate level number series should not consume more than 40-55 seconds of the time and easy number series should be finished within 35 seconds.

At Smartkeeda you can attempt Easy to High Level Number Series quizzes and download (DI) PDF for free. You can also practice Wrong term series quizzes, Missing Term Series Questions for sbi clerk pre 2020 Exam.

Here are the some more types of number series pattern detailed solutions for epfo assistant pre Pre 2020.

3. Geometric Series based series for SBI Clerk Pre  2020 and ibps clerk pre 2020:

It is based on either descending or ascending order of numbers and each successive number is obtained by dividing or multiplying the previous number by a specific number.

Ex: 4, 36, 324, 2916    ?

Sol: 4 x 9 = 36, 36 x 9 = 324, 324 x 9 = 2916, 2916 x 9 = 26244.

4. Arithmetic Series for sbi clerk pre Pre 2020 and IBPS Clerk Pre 2020 with Explanation:
It consists of a series in which the next term is obtained by adding/subtracting a constant number to its previous term. Example: 4, 9, 14, 19, 24, 29, 34 in which the number to be added to get the new number is 5. Now, we get an arithmetic sequence 2,3,4,5.
Two-stage Type Series:

In a two step Arithmetic series, the differences of consecutive numbers themselves form an arithmetic series.
Ex: 1, 3, 6, 10, 15.....
Sol: 3 - 1 = 2, 6 - 3 = 3, 10 - 6 = 4, 15 - 10 = 5....
Now, we get an arithmetic sequence 2, 3, 4, 5

5. Mixed Series for sbi clerk pre 2020 with Explanation:

This particular type of series may have more than one pattern arranged in a single series or it may have been created according to any of the unorthodox rules.

Ex: 10, 22, 46, 94, 190,?
Sol:
10 x 2 = 20 +2 = 22,
22 x 2 = 44 + 2 = 46,
46 x 2 = 92 + 2 = 94,
94 x 2 = 188 + 2 = 190,
190 x 2 = 380 + 2 = 382.

So the missing number is 382.

6. Arithmetic –Geometric Series for sbi pre 2020:

As the name suggests, Arithmetic –Geometric series is formed by a peculiar combination of Arithmetic and Geometric series. An important property of Arithmetic- Geometric series is that the differences of consecutive terms are in Geometric Sequence they have seen in LIC AAO, LIC AAO, IBPS Clerk, epfo assistant pre, NIACL and LIC Exams.

Ex: 1, 4, 8, 11, 22, 25, ?

Sol : Series Type +3 , X2 ( i.e Arithmetic and Geometric Mixing)
1 + 3 = 4, 4 X 2 = 8, 8 + 3 = 11, 11 X 2 = 22, 22 + 3 = 25, 25 X 2 = 50

Geometric - Arithmetic Series is the reverse of Arithmetic - Geometric Series. The differences of suggestive terms are in Arithmetic Series is being asked LIC AAO and sbi clerk pre 2020 Exam.

Ex: 1, 2, 6, 36, 44, 440, ?

Sol: Series Type - × 2, + 4, × 6, +8 , × 10
1 × 2 = 2, 2 + 4 = 6, 6 × 6 = 36, 36 + 8 = 44, 44 × 10 = 440, 440 + 12 = 452

7. Twin/Alternate Number Series for sbi clerk pre 2020:

As the name of the series specifies, this type of series may consist of two series combined into a single series. The alternating terms of this series may form an independent series in itself.

Ex: 3, 4, 8, 10, 13, 16 ? ?

Sol: As we can see, there are two series formed

Series 1: 3, 8, 13 with a common difference of 5

Series 2: 4, 10, 16 with a common difference of 6

So, next two terms of the series should be 18 & 22 respectively.

I hope this Number Series for sbi clerk pre 2020 will help you to attempt more Number Series in Bank Clerk Pre, Bank Clerk mains and Insurance Exams. If you want to practice a mock test for IBPS Clerk, epfo assistant pre Pre, NIACL, LIC, SSC CGL and other government job exams. You can go to the Best Test Series of Bank and SSC Exams at Testzone. At Testzone you will get high quality test at low cost.

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Team Smartkeeda