The questions from number ranking are very usual in banking exams. Generally, there are 4-5 questions from this chapter.
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Number Ranking
                         Number Ranking
Whenever you are solving number ranking you have to know mainly two types of symbols. One is greater than symbol (>) and other is less than symbol (<). Also, to solve these questions you have to only know three things greater than a symbol, smaller than a symbol, and equal to symbol.
In ranking and numbering arrangement, rank or position of a person from right or left to top or bottom of a row is to determined. Also, rank or position is given and the total number of people are to be calculated. Furthermore, based on the data given, you may also be asked to determine on which floor does the person lives on.
You need to read the statement line by line and thereby apply the cases as explained below. Also, the position of a person can be from any side of the row and rank is also given from the top or bottom of the row.
Browse more Topics under Series Completion
- Alphabet Series
- Alpha-Numeric Series
- Letter Repeating Series
- Double Lineup
- Ordering and Ranking
- Letter & symbol series
- Missing Terms in Figures
- Number Series
- Series Completion Practice Questions
Number Ranking Problems
Type 1
Total number of people = total number of people before or after the given person in a row + position of that same person from the different side.
Ex: In a row of people, the position of person X from the left-hand side is 23rd and there are 5 people after X in a row. So, how many total people are there in the row?
Here, the total number of people in the row = number of people after X + position of X from the left side.
Thus, total number of person = 23 + 5 = 28
Type 2
Total number of people = (sum of positions of similar person from both sides i.e. right and left side) – 1
Ex: Ina row of people, the position of X on the left-hand side of the row is 25th while the position of X from the right-hand side of the row is 32nd. How many total numbers of people are there in the row?
Total number of students = (Position of X from light + position of X from left) – 1
= (25 + 32) – 1
= 56
Type 3
When the position of two people are given from either end and we know the total number of people than two cases are formed when trying to determine the total number of people between these positions.
1. When there is no overlapping, the sum of the positions of the two people from either end < total number of people
2. If there is overlapping, the sum of the positions of the two people from either end > total number of people
So, the number of candidates between two different people = total number of students – the sum of positions of two different people from either end
Ex: There are 52 people in a row. X is at the 13th position from the left side of the row while Y is at 18th position form right side of the row. Find the total number of people between X and Y.
So, sum of positions between X and Y either ends = 13 + 18 = 31 < total number of people
Thus, no. of people between X and Y = total no of candidates – (position of X from a left + position of Y from right)
=> 52 – (13 + 18) = 21
Number Ranking Reasoning Questions
Q. Suppose in a row there are 16 people, position of X from the left side is 4th. Find the total number of people after X in the row.
A. 14
B. 13
C. 12
D. 11
Answer: C. 12
There are a number of errors on this page:
In example 2:
“You can see that each of the numbers is a square and that the sequence is a perfect square series. 1, 22, 32, 42 (=16). The alphabet that corresponds to 16 is P. ”
should read
“You can see that each of the numbers is a square and that the sequence is a perfect square series. 1, 2×2, 3×3, 4×4 (=16). The alphabet that corresponds to 16 is P. ”
(I suspect that the original text from which this was prepared used superscript but this has not been reflected in the online version, so use “2×2” or “2^2” which most people are familiar with from Excel)
In Circular Arrangement Series:
“These type of questions are similar to the ones we saw earlier. But there our numbering scheme would stop at 26 with X.”
should read
“These type of questions are similar to the ones we saw earlier. But there our numbering scheme would stop at 26 with Z.”
In example 3:
“Answer: The lesser the number of alphabets present, the greater the difficulty of the question. Here you see that V and A have a difference of 4 alphabets between them. Similarly, A and H have a difference of 6 alphabets between them if we follow the circular order of the alphabets. Thus the next alphabet will have to have a difference of 8 alphabets with H. This alphabet is Q. Thus the series is V, A, H, Q. Therefore the correct option is s) P.”
should read
“Answer: The lesser the number of alphabets present, the greater the difficulty of the question. Here you see that V and A have a difference of 4 letters between them. Similarly, A and H have a difference of 6 letters between them if we follow the circular order of the alphabets. Thus the next alphabet will have to have a difference of 8 letters with H. This letter is Q. Thus the series is V, A, H, Q. Therefore the correct option is d) P.”
In example 4:
“Answer: We will have to figure out the rule to every sequence. If you use the table, you will see that it becomes much more convenient to guess the rule. For example, in the first series, Q = 17; T = 20, X = 24; C = 29 [circular alphabet order]. Thus it forms a series under the rule. Similarly for the second option, F 6, P = 16, Z = 26 and J = 36. It also forms a correct sequence. Let us see the third one i.e. W = 23; U = 21; R = 18; and N = 14. So it is a wrong sequence. In place of N = 14, we should have had O.
That means the only series here that has a wrong term should be d). Let us check it. We have A = 1, L = 12, W = 23, H = 34.
should read
Answer: We will have to figure out the rule to every sequence. If you use the table, you will see that it becomes much more convenient to guess the rule. For example, in the first series, Q = 17; T = 20, X = 24; C = 29 [circular alphabet order]. Thus it forms a series under the rule. Similarly for the second option, F 6, P = 16, Z = 26 and J = 36. It also forms a correct sequence. Let us see the fourth one i.e. A = 1, L = 12, W = 23, H = 34 which is a correct sequence.
Let us see the third one i.e. W = 23; U = 21; R = 18; and N = 14. So it is a wrong sequence. In place of N = 14, we should have had O.
Kind regards,
Alan
PS If you have other material that needs proof-reading I am frequently called upon to spot typos and grammatical errors in texts of all types including dense technical ones.