Six friends A, B, C, D, E, F sit in a row facing East. C is between A and E. B is immediately to the right of E but left of D. F is not at the right end. How many persons are to the right of E?

Difficulty: Easy

Correct Answer: 2

Explanation:


Introduction / Context:
Using the same constraints as the previous item, we must count how many seats lie to the right of E in a valid arrangement.



Given Data / Assumptions:
The constraints are identical to the previous problem: C between A and E; E–B adjacency with B left of D; F not at the right end.



Concept / Approach:
Construct a consistent row and then simply count positions to the right of E.



Step-by-Step Solution:
One valid order is: A, F, C, E, B, D (left→right).To the right of E (position 4) are positions 5 and 6 ⇒ exactly 2 persons.



Verification / Alternative check:
Any valid arrangement respecting the constraints keeps B and D to the right of E, giving 2 persons.



Why Other Options Are Wrong:
They miscount or imply E is too far right/left, violating adjacency constraints.



Common Pitfalls:
Placing F at the extreme right, which is explicitly forbidden.



Final Answer:
2

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