- Topic: Order & Ranking
- Number of Question: 10
- Target: SBI PO, SBI Clerk, RBI Assistant, IBPS PO, IBPS Clerk, SSC CGL, SSC GD, SSC CPO, SSC MTS, SSC CHSL, Railways, etc.
Let’s Start
1.) X is 14th from the right end in a row of 27 students. Then find the Rank of X from left end?
- 12
- 13
- 14
- 15
See Answer
3. 14
Explanation- Given: Total no. of students = 27
The rank of X from right end = 14
To find: Rank of X from the left end, the formula is:
Rank of X from left = Total number of students – Rank of X from right + 1
= (27+1)-14=14
Diagram- 
2.) In a row, A is 7th to the left of B, who is 18th from the right end. And A is 17th from the left end. Then find the total number in a row?
- 28
- 35
- 29
- 41
See Answer
4. 41
Explanation– Given: A’s rank from left end =17th
A’s rank from right end = 18 + 7 = 25th
To find : Total no. = ?
Formula is: Total no. = A’s rank from left end + A’s rank from right end – 1
Total no. = 17 + 25 – 1= 41
3.) In a row of 51 girls, A is 15th from the right end and B is 17th from the left end. Then find how many girls are in between A and B?
- 19
- 22
- 25
- 23
See Answer
- 19
Explanation- Given – Rank of A from right = 15
The rank of B from left = 17
Total number of girls = 51
To Find: How many girls are in between A & B?
Here, Total Number > Rank from Right + Rank from left.
Therefore it is a simple case Mid Number Question.
Formula: Mid no. = Total no. – (Rank of A from Right+Rank of B from left)
Mid number = 51 – (15 +17)=51-32 =51 – 32=19
4.) In a row, X is 17th from the left end and Y is 11th from the right end and there are 4 people sitting in between X and Y. Then, how many people are there in a row?
- 22
- 32
- 23
- 32 or 22
See Answer
4. 32 or 22
Explanation- Given: Mid No. 4
The rank of X from left end = 17
Rank of Y from right end = 11
To find: Total Number =?
Maximum total number of person: Mid no. (Simple Case) = Total No – (Rank of X from left end + Rank of y from right end)
Total No = Mid No + Rank of X from left end + Rank of y from right end. Then, Total No = 4+17+ 11 = 32
Minimum Total Number of Person: Mid No. (Overlap Case) = (Rank of X from left end + Rank of y from right end) – (Total No. +2)
Total No. = (Rank of X from left end + Rank of y from right end) – (Mid No. +2) then, Total No = (17+ 11)-(4+2)=28-6=22
5.) In a row of 47 women, A is 12th from the right end and B is 12th from the left end. C is sitting exactly between A and B. Then, what is C’s rank from the left end?
- 22
- 32
- 24
- 31
See Answer
3. 24
Explanation- Given: Rank of A from right end=12
The rank of B from left end = 12
Total Number = 47
Then Mid no = Total No.- (Rank of A from right end + Rank of B from left end) = 47-24 = 23
To find: Rank of C from left end:
Exact Mid= (Mid no + 1)/2
=(23+1)/2=12
Rank of C from left end = Rank of B from left end + Exact Mid = 12+12=24
Figure- 
6.) In a row, Raghav is twenty-first from the left end and Anupam is twenty-fourth from the right end. When they interchange M their position respectively, then Anupam becomes thirty-first from the right end. Then what will be Raghav’s position from the left after interchanging?
- 27
- 28
- 29
- 30
See Answer
2. 28
Explanation- Total No = Rank of Ashish from left end after interchange + Rank of Ashish from the right end after interchange – 1.
Then Total No. = 21 +31-1=51
Gaurav rank from the left after interchange = Total No. – Rank of Gaurav from right after interchange + 1
Then, Rank of Gaurav from left end after interchange= 51-24 + 1=28
Figure- 
INSTRUCTIONS (Q7-10) In a class of students, Rohan is 13th from the top and Radha is 6th from the top. In addition, Radha is the 3rd girl from the top, while Rohan is the 17th boy from the top and the 16th boy from the bottom. Rohan is 28th from the bottom.
7.) What is the total number of girls in the class?
- 16
- 18
- 19
- 15
See Answer
2. 18
Explanation- 
8.) What is the total number of boys in the class?
- 22
- 23
- 24
- 25
See Answer
- 22
Explanation- Refer to Q7 Explanation
9.) How many boys are there between Radha and Rohan?
- 2
- 4
- 5
- 3
See Answer
4. 3
Explanation- Refer to Q7 Explanation
10.) What is the ratio of boys and girls in the class?
- 11:9
- 12:11
- 11:13
- 9:11
See Answer
- 11:9
Explanation- Refer to Q7 Explanation