Missing number series is an important topic for various bank & government exams like Bank PO, Bank Clerk, RBI, SSC CGL, etc. In this article, we’ll be looking at some missing number series problems which have appeared in the last 5 years of SBI Clerk Exams. We’ll also discuss some tricks to solve these questions in the minimum time possible.
Table of Contents
Last 5 Year Missing Number Series Questions – SBI Clerk | Download PDF
Aspirants can download the ebook using the link given below and watch the video solutions using the video embedded below.
Last 5 Year Missing Number Series Questions – SBI Clerk | Video Solution
Here is our expert mentor solving these past 5 year missing number questions in the most subtle way. Take a look.
What are Missing Number Series?
Missing number series is a series where one term is left for the aspirant to understand the pattern and find out the missing number using mathematical operations. A better approach to solve these questions is to identify the pattern or the formula used to create the series.
The different type of sequences and series are:
- Arithmetic sequence – A sequence in which each term is obtained by adding or subtracting a definite number to the previous number is known as the arithmetic sequence.
- Harmonic sequence – A series of a number in which the reciprocals of all the terms of the sequence forms an arithmetic sequence is known as a harmonic sequence.
- Geometric sequence – A series in which each term is obtained by dividing or multiplying a definite number to the previous number is known as the geometric sequence.
- Fibonacci’s sequence – A sequence in which each number is obtained by adding two previous terms and the sequence starts with 0 and 1 is known as the Fibonacci sequence. Sequence is represented by F0 = O and F1 = 1 and Fn = Fn -1 + Fn -2
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Sneak Peek Into the Ebook
Few of the questions covered in the ebook are –
1. 2, 3, 7, 16, 32, ?
Ans – 57
- 2+12 =3
2. 120, 24, 6, 2, ?, 1
Ans – 1
3. 2, 4, 11, 37, 153, ?
Ans – 771
- 2×1+2= 4
- 11×3+4= 37
- 37×4+5 = 153
- 153×5+6 = 771
4. 3, 10, 22, 39, 61, ?
Ans – 88
Explanation – Here, Difference of Difference is 5
- 10-3= 7
- 22-10= 12
- 39-22= 17
- 61-39= 22
- 88-61= 27
5. 8, 4, 4, 6,12, ?
Ans – 30
- 8x 0.5 =4
- 6x 2=12
- 12x 2.5 = 30
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