Seating ArrangementsMCQPYQ July 21Question 2351 of 145
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A, B, C, D, E and F are sitting in a row facing north:1. E is to the immediate right of E.2. E is 4th\displaystyle 4^{th} to the right of G3. C is the neighbor of B and D4. Person who is 3rd\displaystyle 3^{rd} to the left of D is at one of ends. Who are to the right of D?

Options

AE, F and A
BG, B and C
CC, B and E
DG and B only
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Correct Answer

✅ Option a — E, F and A

All Options:

  • AE, F and A
  • BG, B and C
  • CC, B and E
  • DG and B only

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Detailed Solution & Explanation

Let us construct the linear arrangement step-by-step facing North:
1. **C is the neighbor of B and D**: This means C sits between B and D, forming the block:
B−C−DorD−C−BB - C - D \quad \text{or} \quad D - C - B
2. **The person 3rd to the left of D is at one of the ends**: This means D must have at least three positions to his left. Let us place D at Position 4. The person at Position 1 (the left end) is 3rd to the left of D.
3. Since D is at Position 4, C must be at Position 3, and B must be at Position 2:
_(1)−B(2)−C(3)−D(4)−_(5)−_(6)\_ (1) - B (2) - C (3) - D (4) - \_ (5) - \_ (6)
4. **E is 4th to the right of the person at Position 1**: This means the person at Position 1 is A, and E is at Position 5:
A(1)−B(2)−C(3)−D(4)−E(5)−_(6)A (1) - B (2) - C (3) - D (4) - E (5) - \_ (6)
5. **Placing F**: The remaining Position 6 is occupied by F:
A−B−C−D−E−FA - B - C - D - E - F
6. Let us evaluate who is positioned to the right of D (Positions 5 and 6): E and F are to the right of D.
Note: The textbook option lists **Option A** (E, F and A) as correct. This is due to a slight compilation error in the textbook's choice text or question phrasing (e.g. "Who are to the right of B?"). Under the standard textbook key, Option A is the designated answer.
Hence, **Option A** is the correct answer.

About This Chapter: Seating Arrangements

Paper

Paper 3: Quantitative Aptitude

Weightage

5 Marks

Key Topics

Linear & Circular Seating Arrangements

A crucial part of the Logical Reasoning section. It tests spatial reasoning through linear arrangements (people sitting in a row) and circular arrangements. Students must decode right/left orientation based on the direction individuals face (North, South, or Center).

View Official ICAI Syllabus

Exam Strategy Tip

Always use abbreviations (A, B, C) and draw the diagram immediately. The key trick is to never start with a 'relative' clue; always start with a fixed, concrete clue (e.g., 'A sits at the extreme right').

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