Wrong Number Series SBI Clerk | Last 5-Year Questions Video+PDF

Wrong Number Series SBI Clerk : Wrong number series is an important topic for SBI Clerk and other similar bank & government exams like IBPS PO, IBPS Clerk, SBI PO, RBI, SSC CGL, etc. In this article, we’ll be looking at some wrong number series problems which have appeared in the last 5 years of SBI Clerk Exams. We’ll also discuss some tricks to solve Wrong Number Series SBI Clerk Questions in the minimum time possible. So go ahead and download the PDF and watch the complete video solutions given below. And prior to that you can take your free full or sectional mock test using the link below.

Last 5 Year Wrong Number Series Questions – SBI Clerk | Download PDF

Aspirants can download the ebook on SBI Clerk Wrong Number Series Questions, using the link given below and watch the video solutions using the video embedded below.

Sneak Peek Into the Ebook

Although you can download the ebook in full to check out the content for yourself, we are providing a sneak peek into the ebook so that you know what to epecpt here.

1. 8  36  148  586  2388

Explanation –

• 1×4+4=8
• 8×4+4=36
• 36×4+4=148
• 148 x 4+4=596
• 596 x 4+4= 2388

2. 131  159  189  221  245  291

Explanation –

• 11² +10=131
• 12² +15 = 159
• 13² + 20 = 189
• 14² + 25 = 221
• 15² + 30 = 255
• 16² + 35 = 291

3. 2  3  6  18  109  1944  209952

Explanation –

• 2×3=6
• 3×6=18
• 6×18=108
• 18×108=1944

4. 50 51 47 56 42 65 29

Explanation –

• 50+1²= 51
• 51-2²=47
• 47+3²=56
• 56-4²=40

5. 3  9  23  99  479  2881  20159

Explanation –

• 3×2 +3 =9
• 9×3-4 =23
• 23×4+5 =97
• 97×5-6=479

Last 5 Year Wrong Number Series Questions – SBI Clerk | Video Solution

Here is our expert mentor solving these past 5 year wrong number questions in the most subtle way. Take a look.

What is a Wrong Number Series?

A wrong number series is a proper sequence of numbers with a wrong entry in the sequence. This wrong number form out a wrong pattern. If you didn’t understand yet, you will get to know with the help of examples easily.
 
In the questions of Wrong Term Number Series we have to find out the wrong pattern of numbers which help us find the wrong term in the series.

How to Solve Wrong Number Series Questions?

Here are few tips from experts to solve wrong number series questions within permissible time limit.

• Solve a lot of different types of question on the topic. Practice wrong number series mock tests here.
• Create a full list of all possible types and practice them.
• Try to solve all question mentally, check hints if you are unable to solve them quickly.
• Take the previous year test multiple times.

Few types of Wrong Number Series Questions

Difference of Numbers:

• 5, 10, 15, 20, 25 , 30, …?.., …?….
• 5, 6, 10, 19, 35, …?.., …?…. difference of squares

Difference of Differences or Progressive differences:

• 5, 6, 9, 14, 21, …?.., …?….

Multiplication of previous term:

• 5, 10, 20, 40, 80, 160, (this is Geometric series also)

If difference is becoming huge it may be based on multiplication

• Fractional Multiplication: 5, 2.5, 5, 7.5, 15, 37.5, …?.., …?….
• Multiplication and Plus or Minus: 5, 11, 21, 43, 85, …?.., …?…. (x 2 +1 , x 2 – 1 )

Random pattern:

• 66, 36, 18, …?..
• 1, 4, 9, 16, 25, 36, 49, 64, 81, …?.., …?…. (square)
• 0, 9, 26, 65, 124, 217, …?.., …?…. ( cube -1, cube +1 )

What’s there in this PDF?

That’s all we have in this blog. Hope you find the contents mentioned here useful in solving wrong number series questions in upcoming SBI Clerk exam. Keep hustling for that Banking Job. You can do it.

---

Recommended Readings

• 
  [Infographic]: SBI Clerk vs IBPS Clerk
• 
  [Video]: How To Add Numbers In Mind
• 
  SBI Clerk Important Topics for Prelims Exam 2025