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An uncertain number of person is sitting in a row facing towards North. Q is sitting second from on the extreme ends. S is sitting seventh to the right of M. L is sitting exactly in between Q and S. O is sitting third to the left of R. Only two people are sitting between Q and M. Only one person is sitting between S and O. P is sitting second to the left of N who is sitting fourth to the right of R. R is not an immediate neighbour of S.
Q. How many people are sitting in the row?
  • a)
    23
  • b)
    21
  • c)
    25
  • d)
    22
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Direction: Study the following information carefully and answer the fo...
Facing: North
1) Q is sitting second from on the extreme ends. 
(Here two cases are possible Case I Q is sitting second from the extreme North end Case II where Q is sitting second from the extreme south end) 
2) Only two people are sitting between Q and


3) S is sitting seventh to the right of M. 
Here Case II eliminates as Q is sitting second from the extreme end so S will not sit beyond.
4) L is sitting exactly in between Q and S. 

5) Only one person is sitting between S and O. 
(As O can sit both the sides of S. So, In Case I.I O is sitting second to the right of S and in Case I.II O is sitting second to the left of S.)
6) O is sitting third to the left of R. 


7) R is not an immediate neighbour of S.
Here Case I.II eliminates as R is not an immediate neighbour of S.
8) P is sitting second to the left of N, who is sitting fourth to the right of R. 
The final arrangement

So, 21 people are sitting in the row.
We always count the number of person whether they are defined or not in the final arrangement so here we will count all the seats as these are for the persons.
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Most Upvoted Answer
Direction: Study the following information carefully and answer the fo...
Facing: North
1) Q is sitting second from on the extreme ends. 
(Here two cases are possible Case I Q is sitting second from the extreme North end Case II where Q is sitting second from the extreme south end) 
2) Only two people are sitting between Q and


3) S is sitting seventh to the right of M. 
Here Case II eliminates as Q is sitting second from the extreme end so S will not sit beyond.
4) L is sitting exactly in between Q and S. 

5) Only one person is sitting between S and O. 
(As O can sit both the sides of S. So, In Case I.I O is sitting second to the right of S and in Case I.II O is sitting second to the left of S.)
6) O is sitting third to the left of R. 


7) R is not an immediate neighbour of S.
Here Case I.II eliminates as R is not an immediate neighbour of S.
8) P is sitting second to the left of N, who is sitting fourth to the right of R. 
The final arrangement

So, 21 people are sitting in the row.
We always count the number of person whether they are defined or not in the final arrangement so here we will count all the seats as these are for the persons.
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Community Answer
Direction: Study the following information carefully and answer the fo...
Given Information:
- An uncertain number of people are sitting in a row facing north.
- Q is sitting second from one of the extreme ends.
- S is sitting seventh to the right of M.
- L is sitting exactly in between Q and S.
- O is sitting third to the left of R.
- Only two people are sitting between Q and M.
- Only one person is sitting between S and O.
- P is sitting second to the left of N who is sitting fourth to the right of R.
- R is not an immediate neighbor of S.

Solution:
To solve this question, let's analyze the given information step by step.

1. Q is sitting second from one of the extreme ends:
Since Q is sitting second from one of the extreme ends, it means Q can either be at the second position from the left end or the second position from the right end.

2. S is sitting seventh to the right of M:
From this information, we can conclude that M is to the left of S, and S is seventh to the right of M.

3. L is sitting exactly in between Q and S:
This information indicates that L is sitting between Q and S in the row.

4. O is sitting third to the left of R:
From this information, we can conclude that R is to the right of O, and O is three positions to the left of R.

5. Only two people are sitting between Q and M:
This information means that there are two people between Q and M in the row.

6. Only one person is sitting between S and O:
This information indicates that there is one person between S and O in the row.

7. P is sitting second to the left of N who is sitting fourth to the right of R:
From this information, we can conclude that P is two positions to the left of N, and N is four positions to the right of R.

8. R is not an immediate neighbor of S:
This information tells us that R and S are not sitting next to each other in the row.

Arranging the information:
Let's arrange the given information in a logical sequence to determine the number of people sitting in the row.

1. Since Q is sitting second from one of the extreme ends, we can place Q at the second position from the left end or the second position from the right end. Let's consider both possibilities.
- Possibility 1: Q is second from the left end.
- Q _ _ _ _ _ _
- Possibility 2: Q is second from the right end.
- _ _ _ _ _ _ Q

2. S is sitting seventh to the right of M. Since S is seventh to the right of M, we can place M to the left of S.
- Possibility 1: Q is second from the left end.
- Q _ _ _ _ _ _
M S
- Possibility 2: Q is second from the right end.
- _ _ _ _ _ _ Q
M S

3. L is sitting exactly in between Q and S. Since L is sitting exactly in between Q and S, we can place L between Q and S in
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Direction: Study the following information carefully and answer the following questions.An uncertain number of person is sitting in a row facing towards North. Q is sitting second from on the extreme ends. S is sitting seventh to the right of M. L is sitting exactly in between Q and S. O is sitting third to the left of R. Only two people are sitting between Q and M. Only one person is sitting between S and O. P is sitting second to the left of N who is sitting fourth to the right of R. R is not an immediate neighbour of S.Q. How many people are sitting in the row?a)23b)21c)25d)22Correct answer is option 'B'. Can you explain this answer?
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Direction: Study the following information carefully and answer the following questions.An uncertain number of person is sitting in a row facing towards North. Q is sitting second from on the extreme ends. S is sitting seventh to the right of M. L is sitting exactly in between Q and S. O is sitting third to the left of R. Only two people are sitting between Q and M. Only one person is sitting between S and O. P is sitting second to the left of N who is sitting fourth to the right of R. R is not an immediate neighbour of S.Q. How many people are sitting in the row?a)23b)21c)25d)22Correct answer is option 'B'. Can you explain this answer? for CDS 2025 is part of CDS preparation. The Question and answers have been prepared according to the CDS exam syllabus. Information about Direction: Study the following information carefully and answer the following questions.An uncertain number of person is sitting in a row facing towards North. Q is sitting second from on the extreme ends. S is sitting seventh to the right of M. L is sitting exactly in between Q and S. O is sitting third to the left of R. Only two people are sitting between Q and M. Only one person is sitting between S and O. P is sitting second to the left of N who is sitting fourth to the right of R. R is not an immediate neighbour of S.Q. How many people are sitting in the row?a)23b)21c)25d)22Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for CDS 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Direction: Study the following information carefully and answer the following questions.An uncertain number of person is sitting in a row facing towards North. Q is sitting second from on the extreme ends. S is sitting seventh to the right of M. L is sitting exactly in between Q and S. O is sitting third to the left of R. Only two people are sitting between Q and M. Only one person is sitting between S and O. P is sitting second to the left of N who is sitting fourth to the right of R. R is not an immediate neighbour of S.Q. How many people are sitting in the row?a)23b)21c)25d)22Correct answer is option 'B'. Can you explain this answer?.
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